28503543 SQL PLSQL Material Ramanjanayalu

8/13/2019 28503543 SQL PLSQL Material Ramanjanayalu

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Oracle SQL Guide 1

INTRODUCTION

SQL is divided into the following

Data Definition Language (DDL)

Data Manipulation Language (DML)

Data Retieval Language (DRL)

Tansa!tion Contol Language (TCL)

Data Contol Language (DCL)

DDL "" !eate# alte# dop# tun!ate# ena$e

DML "" inset# update# delete

DRL "" sele!t

TCL "" !o$$it# oll%a! savepoint

DCL "" gant# evo&e

CR'T' TL' S*NT+

Ceate ta%le ,table_name- (col1 datatype1, col2 datatype2 coln datatypen).

'/0

SQL- !eate ta%le student (no nu$%e (1)# na$e va!ha (23)# $a&s nu$%e (4)).

INS'RT

This will %e used to inset the e!ods into ta%le56e have two $ethods to inset5

7 value $ethod

7 addess $ethod

a) USIN8 9LU' M'T:OD

S7nta/0

inset into ,table_name) values (value1, value2, value3 . Valuen). '/0

SQL- inset into student values (2# ;sudha;# 233).

SQL- inset into student values (1# ;sa# 133).

To inset a new e!od again 7ou have to t7pe entie inset !o$$and# if thee ae lot of


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Oracle SQL Guide 2

e!ods this will %e diffi!ult5

This will %e avoided %7 using addess $ethod5

%) USIN8 DDR'SS M'T:OD

S7nta/0

inset into ,table_name) values (&col1, &col2, &col3 . &coln).

This will po$pt 7ou fo the values %ut fo eve7 inset 7ou have to use fowad slash5

'/0

SQL- inset into student values (agan

'nte value fo $a&s0 433

old 20 inset into student values(


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Oracle SQL Guide 3

d) INS'RTIN8 DT INTO SA'CIBI'D COLUMNS USIN8 DDR'SS M'T:OD

S7nta/0

inset into ,table_name)(col1, col2, col3 coln) values (&col1, &col2 .&coln);

This will po$pt 7ou fo the values %ut fo eve7 inset 7ou have to use fowad slash5

'/0

SQL- inset into student (no# na$e) values (


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Oracle SQL Guide 4

2 Sudha 233

1 Sa&eth 133

2 >agan 433

1 Naen @33

4 Ra$esh

@ Madhu

9isu

Rattu

SQL- sele!t no# na$e# $a&s fo$ student.

NO NM' MRFS

""" """""" """""""" 2 Sudha 233

1 Sa&eth 133

2 >agan 433

1 Naen @33

4 Ra$esh

@ Madhu

9isu

Rattu

SQL- sele!t no# na$e fo$ student.

NO NM'

""" """""""

2 Sudha

1 Sa&eth

2 >agan

1 Naen

4 Ra$esh

@ Madhu

9isu

Rattu


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Oracle SQL Guide 5

CONDITIONL S'L'CTIONS ND OA'RTORS

6e have two !lauses used in this

6hee

Ode %7

USIN8 6:'R'

S7nta/0

sele!t E fo$ ,table_name- whee ,condition-.

the following ae the diffeent t7pes of opeatos used in whee !lause5

ith$eti! opeatos

Co$paison opeatos

Logi!al opeatos

ith$eti! opeatos "" highest pe!eden!e

G# "# E# ?

Co$paison opeatos

H# H# -# ,# -H# ,H# ,-

%etween# not %etween

in# not in

null# not null

li&e

Logi!al opeatos

nd

O "" lowest pe!eden!e

not

a) USIN8 H# -# ,# -H# ,H# H# ,-


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Oracle SQL Guide 6

'/0

SQL- sele!t E fo$ student whee no H 1.

NO NM' MRFS

""" """"""" """""""""

1 Sa&eth 133

1 Naen @33

SQL- sele!t E fo$ student whee no , 1.

NO NM' MRFS

""" """"""" """"""""""

2 Sudha 233 2 >agan 433

SQL- sele!t E fo$ student whee no - 1.

NO NM' MRFS

""" """"""" """"""""""

4 Ra$esh

@ Madhu 9isu

Rattu

SQL- sele!t E fo$ student whee no ,H 1.

NO NM' MRFS

""" """"""" """"""""""

2 Sudha 233

1 Sa&eth 133

2 >agan 433

1 Naen @33


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Oracle SQL Guide 8

Rattu

%) USIN8 ND

This will gives the output when all the !onditions %e!o$e tue5

S7nta/0

sele!t E fo$ ,table_name- whee ,condition1- and ,condition2- and 55

,conditionn-.

'/0

SQL- sele!t E fo$ student whee no H 1 and $a&s -H 133.

NO NM' MRFS

""" """"""" """"""""

1 Sa&eth 133

1 Naen @33

!) USIN8 OR

This will gives the output when eithe of the !onditions %e!o$e tue5

S7nta/0

sele!t E fo$ ,table_name- whee ,condition1- and ,condition2- o 55

,conditionn-.

'/0

SQL- sele!t E fo$ student whee no H 1 o $a&s -H 133.

NO NM' MRFS

""" """"""" """""""""

1 Sa&eth 133

2 >agan 433

1 Naen @33


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Oracle SQL Guide 9

d) USIN8 'T6''N

This will gives the output %ased on the !olu$n and its lowe %ound# uppe%ound5

S7nta/0

sele!t E fo$ ,table_name- whee ,col- %etween ,lower bound- and ,upper

bound-.

'/0

SQL- sele!t E fo$ student whee $a&s %etween 133 and @33.

NO NM' MRFS

""" """"""" """""""""

1 Sa&eth 133

2 >agan 433

1 Naen @33

e) USIN8 NOT 'T6''N

This will gives the output %ased on the !olu$n whi!h values ae not in its lowe %ound#

uppe%ound5

S7nta/0

sele!t E fo$ ,table_name- whee ,col- not %etween ,lower bound- and ,upper

bound-.

'/0

SQL- sele!t E fo$ student whee $a&s not %etween 133 and @33.

NO NM' MRFS

""" """"""" """""""""

2 Sudha 233


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Oracle SQL Guide 10

f) USIN8 IN

This will gives the output %ased on the !olu$n and its list of values spe!ified5

S7nta/0

sele!t E fo$ ,table_name- whee ,col- in (value1, value2, value3 valuen).

'/0

SQL- sele!t E fo$ student whee no in (2# 1# 4).

NO NM' MRFS

""" """"""" """""""""

2 Sudha 233

1 Sa&eth 133

2 >agan 433

1 Naen @33

4 Ra$esh

g) USIN8 NOT IN

This will gives the output %ased on the !olu$n whi!h values ae not in the list of

values spe!ified5

S7nta/0

sele!t E fo$ ,table_name- whee ,col- not in (value1, value2, value3 valuen).

'/0

SQL- sele!t E fo$ student whee no not in (2# 1# 4).

NO NM' MRFS

""" """"""" """""""""

@ Madhu


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Oracle SQL Guide 11

9isu

Rattu

h) USIN8 NULL

This will gives the output %ased on the null values in the spe!ified !olu$n5

S7nta/0

sele!t E fo$ ,table_name- whee ,col- is null.

'/0

SQL- sele!t E fo$ student whee $a&s is null.

NO NM' MRFS

""" """"""" """""""""

4 Ra$esh

@ Madhu

9isu

Rattu

i) USIN8 NOT NULL

This will gives the output %ased on the not null values in the spe!ified !olu$n5

S7nta/0

sele!t E fo$ ,table_name- whee ,col- is not null.

'/0

SQL- sele!t E fo$ student whee $a&s is not null.

NO NM' MRFS

""" """"""" """""""""

2 Sudha 233

1 Sa&eth 133

2 >agan 433


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Oracle SQL Guide 12

1 Naen @33

J) USIN8 LIF'

This will %e used to sea!h though the ows of data%ase !olu$n %ased on the patten

7ou spe!if75

S7nta/0

sele!t E fo$ ,table_name- whee ,col- li&e ,pattern-.

'/0

i) This will give the ows whose $a&s ae 2335

SQL- sele!t E fo$ student whee $a&s li&e 233.

NO NM' MRFS

""" """"""" """""""""

2 Sudha 233

ii) This will give the ows whose na$e stat with KS;5

SQL- sele!t E fo$ student whee na$e li&e =S=.

NO NM' MRFS

""" """"""" """""""""

2 Sudha 233

1 Sa&eth 133

iii) This will give the ows whose na$e ends with Kh;5

SQL- sele!t E fo$ student whee na$e li&e =h=.

NO NM' MRFS

""" """"""" """""""""

1 Sa&eth 133


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Oracle SQL Guide 13

4 Ra$esh

i9) This will give the ows whose na$e;s se!ond lette stat with Ka;5

SQL- sele!t E fo$ student whee na$e li&e =a=.

NO NM' MRFS

""" """"""" """"""""

1 Sa&eth 133

2 >agan 433

1 Naen @33

4 Ra$esh

@ Madhu Rattu

9) This will give the ows whose na$e;s thid lette stat with Kd;5

SQL- sele!t E fo$ student whee na$e li&e =d=.

NO NM' MRFS

""" """"""" """"""""" 2 Sudha 233

@ Madhu

9i) This will give the ows whose na$e;s se!ond lette stat with Kt; fo$ ending5

SQL- sele!t E fo$ student whee na$e li&e =t=.

NO NM' MRFS

""" """"""" """""""""

1 Sa&eth 133

Rattu

9ii) This will give the ows whose na$e;s thid lette stat with Ke; fo$ ending5


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Oracle SQL Guide 14

SQL- sele!t E fo$ student whee na$e li&e =e=.

NO NM' MRFS

""" """"""" """""""""

1 Sa&eth 133

4 Ra$esh

9iii) This will give the ows whose na$e !otains 1 a;s5

SQL- sele!t E fo$ student whee na$e li&e =a a =.

NO NM' MRFS """ """"""" """"""""""

2 >agan 433

E *ou have to spe!if7 the pattens in lieusing undes!oe ( )5

USIN8 ORD'R *

This will %e used to odeing the !olu$ns data (as!ending o des!ending)5

S7nta/0

Sele!t E fo$ ,table_name- ode %7 ,col- des!.

7 default oa!le will use as!ending ode5

If 7ou want output in des!ending ode 7ou have to use de!c&e7wod afte the !olu$n5

'/0

SQL- sele!t E fo$ student ode %7 no.

NO NM' MRFS

""" """"""" """""""""

2 Sudha 233

2 >agan 433


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Oracle SQL Guide 15

1 Sa&eth 133

1 Naen @33

4 Ra$esh

@ Madhu

9isu

Rattu

SQL- sele!t E fo$ student ode %7 no des!.

NO NM' MRFS

""" """"""" """""""""

Rattu

9isu @ Madhu

4 Ra$esh

1 Sa&eth 133

1 Naen @33

2 Sudha 233

2 >agan 433

USIN8 DML

USIN8 UADT'

This !an %e used to $odif7 the ta%le data5

S7nta/0

Update ,table_name- set ,col1- H value2# ,col2- H value1 whee ,condition-.

'/0

SQL- update student set $a&s H 33.

If 7ou ae not spe!if7ing an7 !ondition this will update entie ta%le5

SQL- update student set $a&s H 33 whee no H 1.

SQL- update student set $a&s H 33# na$e H =9enu= whee no H 2.


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Oracle SQL Guide 16

USIN8 D'L'T'

This !an %e used to delete the ta%le data te$poail75

S7nta/0

Delete ,table_name- whee ,condition-.

'/0

SQL- delete student.

If 7ou ae not spe!if7ing an7 !ondition this will delete entie ta%le5

SQL- delete student whee no H 1.

USIN8 DDL

USIN8 LT'R

This !an %e used to add o e$ove !olu$ns and to $odif7 the pe!ision of the datat7pe5

a) DDIN8 COLUMN

S7nta/0

alte ta%le ,table_name- add ,col datatype-.

'/0

SQL- alte ta%le student add sdo% date.

%) R'MO9IN8 COLUMN

S7nta/0

alte ta%le ,table_name- dop ,col datatype-.


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Oracle SQL Guide 17

'/0

SQL- alte ta%le student dop !olu$n sdo%.

!) INCR'SIN8 OR D'CR'SIN8 AR'CISION OB COLUMN

S7nta/0

alte ta%le ,table_name- $odif7 ,col datatype-.

'/0

SQL- alte ta%le student $odif7 $a&s nu$%e().

E To de!ease pe!ision the !olu$n should %e e$pt75

d) MFIN8 COLUMN UNUS'D

S7nta/0

alte ta%le ,table_name- set unused !olu$n ,col-.

'/0

SQL- alte ta%le student set unused !olu$n $a&s.

'ven though the !olu$n is unused still it will o!!up7 $e$o75

d) DROAAIN8 UNUS'D COLUMNS

S7nta/0

alte ta%le ,table_name- dop unused !olu$ns.

'/0

SQL- alte ta%le student dop unused !olu$ns.

E *ou !an not dop individual unused !olu$ns of a ta%le5

e) R'NMIN8 COLUMN

S7nta/0

alte ta%le ,table_name- ena$e !olu$n ,old_col_name- to ,new_col_name-.


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Oracle SQL Guide 18

'/0

SQL- alte ta%le student ena$e !olu$n $a&s to s$a&s.

USIN8 TRUNCT'

This !an %e used to delete the entie ta%le data pe$anentl75

S7nta/0

tun!ate ta%le ,table_name-.

'/0

SQL- tun!ate ta%le student.

USIN8 DROA

This will %e used to dop the data%ase o%Je!t.

S7nta/0

Dop ta%le ,table_name-.

'/0

SQL- dop ta%le student.

USIN8 R'NM'

This will %e used to ena$e the data%ase o%Je!t.

S7nta/0

ena$e ,oldtable_name- to ,new_table_name-.

'/0

SQL- ena$e student to stud.


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Oracle SQL Guide 20

O

Roll%a!& o oll%a!& wo&.

E 6hile po!ess is going on# if suddenl7 powe goes then oa!le will oll%a!& the tansa!tion5

USIN8 S9'AOINT

*ou !an use savepoints to oll%a!& potions of 7ou !uent set of tansa!tions5

S7nta/0

Savepoint ,!avepoint_name-.

'/0

SQL- savepoint s2.

SQL- inset into student values(2# Ka;# 233). SQL- savepoint s1.

SQL- inset into student values(1# K%;# 133).

SQL- savepoint s4.

SQL- inset into student values(4# K!;# 433).

SQL- savepoint s@.

SQL- inset into student values(@# Kd;# @33).

efoe oll%a!&

SQL- sele!t E fo$ student.

NO NM' MRFS

""" """"""" """"""""""

2 a 233

1 % 133

4 ! 433

@ d @33

SQL- oll%a!& to savepoint s4.

O

SQL- oll%a!& to s4.


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Oracle SQL Guide 21

This will oll%a!& last two e!ods5


NO NM' MRFS

""" """"""" """"""""""

2 a 233

1 % 133

USIN8 DCL

DCL !o$$ands ae used to ganting and evo&ing the pe$issions5

USIN8 8RNT

This is used to gant the pivileges to othe uses5

S7nta/0

8ant ,privile"e!- on ,ob#ect_name- to ,u!er_name- with gant option.

'/0

SQL- gant sele!t on student to sudha. "" 7ou !an give individual pivilege

SQL- gant sele!t# inset on student to sudha. "" 7ou !an give set of pivileges SQL- gant all on student to sudha. "" 7ou !an give all pivileges

The sudha use has to use dot $ethod to a!!ess the o%Je!t5

SQL- sele!t E fo$ sa&eth5student.

The sudha use !an not gant pe$ission on student ta%le to othe uses5 To get this

t7pe of option use the following5

SQL- gant all on student to sudha with gant option.

Now sudha use also gant pe$issions on student ta%le5

USIN8 R'9OF'

This is used to evo&e the pivileges fo$ the uses to whi!h 7ou ganted the pivileges5


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Oracle SQL Guide 23

Inset into ,table1- sele!t E fo$ ,table2-.

'/0

SQL- inset into student2 sele!t E fo$ student.

Inseting data into spe!ified !olu$ns

SQL- inset into student2(no# na$e) sele!t no# na$e fo$ student.

COLUMN LIS'S

S7nta/0

$elect %or"inal_col %alia!_name 'rom %tablena$e-.

'/0

SQL- sele!t no sno fo$ student.

o

SQL- sele!t no Psno fo$ student.

TL' LIS'S

If 7ou ae using ta%le aliases 7ou !an use dot $ethod to the !olu$ns5

S7nta/0

Sele!t ,alia!_name-5,col1-# ,alia!_name-5,col2- ,alia!_name-5,coln- fo$

,table_name- ,alia!_name-.

'/0

SQL- sele!t s5no# s5na$e fo$ student s.

USIN8 M'R8'

M'R8'


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Oracle SQL Guide 24

*ou !an use $ege !o$$and to pefo$ inset and update in a single !o$$and5

'/0

SQL- Mege into student2 s2

Using (sele!t EBo$ student1) s1

On(s25noHs15no)

6hen $at!hed then

Update set $a&s H s15$a&s

6hen not $at!hed then

Inset (s25no#s25na$e#s25$a&s)

9alues(s15no#s15na$e#s15$a&s).

In the a%ove the two ta%les ae with the sa$e stu!tue %ut we !an $ege diffeent stu!tued ta%les also

%ut the datat7pe of the !olu$ns should $at!h5

ssu$e that student2 has !olu$ns li&e no#na$e#$a&s and student1 has !olu$ns li&e no#

na$e# hno# !it75

SQL- Mege into student2 s2

Using (sele!t EBo$ student1) s1

On(s25noHs15no)

6hen $at!hed then

Update set $a&s H s15hno

6hen not $at!hed then

Inset (s25no#s25na$e#s25$a&s)

9alues(s15no#s15na$e#s15hno).


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Oracle SQL Guide 25

MULTIL' INS'RTS

6e have ta%le !alled D'AT with the following !olu$ns and data

D'ATNO DNM' LOC

"""""""" """""""" """"

23 a!!ounting new 7o&

13 esea!h dallas

43 sales Chi!ago

@3 opeations %oston

a) CR'T' STUD'NT TL'

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(1)#$a&s nu$%e(4)).

%) MULTI INS'RT 6IT: LL BI'LDS

SQL- Inset all

Into student values(2#;a;#233)

Into student values(1#;%;#133)

Into student values(4#;!;#433)

Sele!t Efo$ dept whee deptnoH23.

"" This insets 4 ows

!) MULTI INS'RT 6IT: SA'CIBI'D BI'LDS

SQL- inset all

Into student (no#na$e) values(@#;d;)

Into student(na$e#$a&s) values(;e;#@33)

Into student values(4#;!;#433)




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Oracle SQL Guide 27

Into student4 values(4#;!;#433)

'lse

Into student values(@#;d;#@33)

Sele!t Efo$ dept whee deptno-23.

"" This insets 4 e!ods %e!ause the else satisfied 4 ti$es

g) MULTI INS'RT 6IT: CONDITIONS S'D ND BIRST

SQL- Inset fist

6hen deptno H 13 then

Into student2 values(2#;a;#233)

6hen dna$e H KR'S'RC:; then Into student1 values(1#;%;#133)

6hen lo! H KN'6 *ORF; then



"" This insets 2 e!od %e!ause the fist !lause avoid to !he!& the e$aining

!onditions on!e the !ondition is satisfied5

h) MULTI INS'RT 6IT: CONDITIONS S'D# BIRST ND 'LS'

SQL- Inset fist

6hen deptno H 43 then


6hen dna$e H KR; then

Into student1 values(1#;%;#133)

6hen lo! H KN'6 *ORF; then


'lse

Into student values(@#;d;#@33)



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Oracle SQL Guide 28

"" This insets 2 e!od %e!ause the else !lause satisfied on!e

i) MULTI INS'RT 6IT: MULTIL' TL'S

SQL- Inset all


Into student1 values(1#;%;#133)




EE *ou !an use $ulti ta%les with spe!ified fields# with dupli!ate ows# with !onditions#with fist and else !lauses5

BUNCTIONS

Bun!tions !an %e !ategoied as follows5

Single ow fun!tions

8oup fun!tions

SIN8L' RO6 BUNCTIONS

Single ow fun!tions !an %e !ategoied into five5 These will %e applied fo ea!h ow and podu!es

individual output fo ea!h ow5

Nu$ei! fun!tions

Sting fun!tions

Date fun!tions

Mis!ellaneous fun!tions

Convesion fun!tions


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Oracle SQL Guide 29

NUM'RIC BUNCTIONS

%s

Sign

St

Mod

Nvl

Aowe

'/p

Ln

Log

Ceil Bloo

Round

Tun&

itand

8eatest

Least

Coales!e

a) S

%solute value is the $easue of the $agnitude of value5

%solute value is alwa7s a positive nu$%e5

S7nta/0 a%s (value)

'/0

SQL- sele!t a%s()# a%s(")# a%s(3)# a%s(null) fo$ dual.

S() S(") S(3) S(NULL)

"""""""""" """""""""" """""""""" """""""""""""

" 3


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Oracle SQL Guide 30

%) SI8N

Sign gives the sign of a value5

S7nta/0 sign (value)

'/0

SQL- sele!t sign()# sign(")# sign(3)# sign(null) fo$ dual.

SI8N() SI8N(") SI8N(3) SI8N(NULL)

"""""""""" """""""""" """""""""" """"""""""""""

2 "2 3

!) SQRT

This will give the suae oot of the given value5

S7nta/0 st (value) "" hee value $ust %e positive5

'/0

SQL- sele!t st(@)# st(3)# st(null)# st(2) fo$ dual. SQRT(@) SQRT(3) SQRT(NULL) SQRT(2)

"""""""""" """""""""" """"""""""""""" """"""""""

1 3 2

d) MOD

This will give the e$ainde5

S7nta/0 $od (value, divi!or)

'/0

SQL- sele!t $od(V#@)# $od(2#)# $od(null#null)# $od(3#3)# $od("V#@) fo$ dual.


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Oracle SQL Guide 31

MOD(V#@) MOD(2#) MOD(NULL#NULL) MOD(3#3) MOD("V#@)

"""""""""""" """""""""" """"""""""""""""""""" """"""""""" """""""""""""

4 2 3 "4

e) N9L

This will su%stitutes the spe!ified value in the pla!e of null values5

S7nta/0 nvl (null_col, replacement_value)

'/0 SQL- sele!t E fo$ student. "" hee fo 4dow $a&s value is null

NO NM' MRFS

""" """"""" """""""""

2 a 233

1 % 133

4 !

SQL- sele!t no# na$e# nvl($a&s#433) fo$ student.

NO NM' N9L(MRFS#433)

""" """"""" """""""""""""""""""""

2 a 233

1 % 133

4 ! 433

SQL- sele!t nvl(2#1)# nvl(1#4)# nvl(@#4)# nvl(#@) fo$ dual.

N9L(2#1) N9L(1#4) N9L(@#4) N9L(#@)

"""""""""" """""""""" """""""""" """"""""""

2 1 @


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Oracle SQL Guide 32

SQL- sele!t nvl(3#3)# nvl(2#2)# nvl(null#null)# nvl(@#@) fo$ dual.

N9L(3#3) N9L(2#2) N9L(null#null) N9L(@#@)

"""""""""" """""""""" """"""""""""""""" """"""""""

3 2 @

f) AO6'R

Aowe is the a%ilit7 to aise a value to a given e/ponent5

S7nta/0 powe (value, eponent)

'/0

SQL- sele!t powe(1#)# powe(3#3)# powe(2#2)# powe(null#null)# powe(1#")

fo$ dual.

AO6'R(1#) AO6'R(3#3) AO6'R(2#2) AO6'R(NULL#NULL) AO6'R(1#")

"""""""""""""" """""""""""""" """"" """"""""" """"""""""""""""""""""" """""""""""""""

41 2 2 53421

g) '+A

This will aise e value to the give powe5

S7nta/0 e/p (value)

'/0

SQL- sele!t e/p(2)# e/p(1)# e/p(3)# e/p(null)# e/p("1) fo$ dual.

'+A(2) '+A(1) '+A(3) '+A(NULL) '+A("1)

"""""""" """"""""" """""""" """"""""""""" """"""""""

15V2W1W2W4 V54W32 2 524441W4


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h) LN

This is %ased on natual o %ase e logaith$5

S7nta/0 ln (value) "" hee value $ust %e geate than eo whi!h is positive onl75

'/0

SQL- sele!t ln(2)# ln(1)# ln(null) fo$ dual.

LN(2) LN(1) LN(NULL)

""""""" """"""" """""""""""" 3 542@V2W2

Ln and '/p ae e!ipo!al to ea!h othe5

'+A (4) H 1353W4

LN (1353W4) H 4

i) LO8

This is %ased on 23 %ased logaith$5

S7nta/0 log (23# value) "" hee value $ust %e geate than eo whi!h is positive onl75

'/0

SQL- sele!t log(23#233)# log(23#1)# log(23#2)# log(23#null) fo$ dual.

LO8(23#233) LO8(23#1) LO8(23#2) LO8(23#NULL)

""""""""""""""" """"""""""" """""""""""" """""""""""""""""

1 543231 3

LN (value) H LO8 ('+A(2)# value)


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SQL- sele!t ln(4)# log(e/p(2)#4) fo$ dual.

LN(4) LO8('+A(2)#4)

""""""" """""""""""""""""

253W211 253W211

J) C'IL

This will podu!e a whole nu$%e that is geate than o eual to the spe!ified value5

S7nta/0 !eil (value)

'/0 SQL- sele!t !eil()# !eil(52)# !eil(")# !eil( "52)# !eil(3)# !eil(null) fo$ dual.

C'IL() C'IL(52) C'IL(") C'IL("52) C'IL(3) C'IL(NULL)

""""""""" """"""""""" """""""""" """""""""""" """""""" """"""""""""""

" " 3

&) BLOOR

This will podu!e a whole nu$%e that is less than o eual to the spe!ified value5

S7nta/0 floo (value)

'/0

SQL- sele!t floo()# floo(52)# floo(")# floo( "52)# floo(3)# floo(null) fo$

dual.

BLOOR() BLOOR(52) BLOOR(") BLOOR("52) BLOOR(3) BLOOR(NULL)

""""""""""" """"""""""""" """""""""""" """""""""""""" """"""""""" """"""""""""""""

" " 3

l) ROUND

This will ounds nu$%es to a given nu$%e of digits of pe!ision5


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S7nta/0 ound (value, preci!ion)

'/0

SQL- sele!t ound(214514@)# ound(214514@#1)# ound(214514@#1) fo$ dual.

ROUND(214514@) ROUND(214514@#3) ROUND(214514@#1) ROUND(214514@#1)

""""""""""""""""""""" """""""""""""""""""""""" """"""""""""""""""""""" """""""""""""""""""""""

214 214 214514 21451@

SQL- sele!t ound(214514@#"2)# ound(214514@#"1)# ound(214514@#"4)#

ound(214514@#"@) fo$ dual.

ROUND(214514@#"2) ROUND(214514@#"1) ROUND(214514@#"4) ROUND(214514@#"@)

"""""""""""""""""""""""" """"""""""""""""""""""""" """""""""""""""""""""""" """"""""""""""""""""""""

213 233 3 3

SQL- sele!t ound(214#3)# ound(214#2)# ound(214#1) fo$ dual.

ROUND(214#3) ROUND(214#2) ROUND(214#1)

""""""""""""""""" """"""""""""""""" """""""""""""""" 214 214 214

SQL- sele!t ound("214#3)# ound("214#2)# ound("214#1) fo$ dual.

ROUND("214#3) ROUND("214#2) ROUND("214#1)

"""""""""""""""""" """"""""""""""""" """""""""""""""""""

"214 "214 "214

SQL- sele!t ound(214#"2)# ound(214#"1)# ound(214#"4)# ound("214#"2)# ound(

"214#"1)# ound("214#"4) fo$ dual.


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ROUND(214#"2) ROUND(214#"1) ROUND(214#"4) ROUND("214#"2) ROUND("214#"1)

ROUND("214#"4)

""""""""""""" """"""""""""" """"""""""""" """""""""""""" """""""""""""" """"""""""""""""""""""""""

213 233 3 "213 "233 3

SQL- sele!t ound(null#null)# ound(3#3)# ound(2#2)# ound("2#"2)# ound("1#"1)

fo$ dual.

ROUND(NULL#NULL) ROUND(3#3) ROUND(2#2) ROUND("2#"2) ROUND("1#"1)

""""""""""""""""""""""" """""""""""""" """""""""""""" """""""""""""""" """"""""""""""""

3 2 3 3

$) TRUNC

This will tun!ates o !hops off digits of pe!ision fo$ a nu$%e5

S7nta/0 tun! (value, preci!ion)

'/0 SQL- sele!t tun!(214514@)# tun!(214514@#1)# tun!(214514@#1) fo$ dual.

TRUNC(214514@) TRUNC(214514@#1) TRUNC(214514@#1)

""""""""""""""""""""" """"""""""""""""""""""" """""""""""""""""""""""

214 214514 214514

SQL- sele!t tun!(214514@#"2)# tun!(214514@#"1)# tun!(214514@#"4)#

tun!(214514@#"@) fo$ dual.

TRUNC(214514@#"2) TRUNC(214514@#"1) TRUNC(214514@#"4) TRUNC(214514@#"@)

"""""""""""""""""""""""" """""""""""""""""""""""" """"""""""""""""""""""" """"""""""""""""""""""""

213 233 3 3


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SQL- sele!t tun!(214#3)# tun!(214#2)# tun!(214#1) fo$ dual.

TRUNC(214#3) TRUNC(214#2) TRUNC(214#1)

"""""""""""""""" """""""""""""""" """""""""""""""""

214 214 214

SQL- sele!t tun!("214#3)# tun!("214#2)# tun!("214#1) fo$ dual.

TRUNC("214#3) TRUNC("214#2) TRUNC("214#1)

""""""""""""""""" """"""""""""""""" """""""""""""""""

"214 "214 "214

SQL- sele!t tun!(214#"2)# tun!(214#"1)# tun!(214#"4)# tun!("214#"2)# tun!(

"214#1)# tun!("214#"4) fo$ dual.

TRUNC(214#"2) TRUNC(214#"1) TRUNC(214#"4) TRUNC("214#"2) TRUNC("214#1) TRUNC("

214#"4)

""""""""""""" """"""""""""" """"""""""""" """""""""""""" """"""""""""" """""""""""""""""""""""""""""""""

213 233 3 "213 "214 3

SQL- sele!t tun!(null#null)# tun!(3#3)# tun!(2#2)# tun!("2#"2)# tun!("1#"1) fo$

dual.

TRUNC(NULL#NULL) TRUNC(3#3) TRUNC(2#2) TRUNC("2#"2) TRUNC("1#"1)

""""""""""""""""""""""" """"""""""""" """"""""""""" """"""""""""""" """"""""""""""""

3 2 3 3

n) ITND

This will pefo$ %itwise and opeation5

S7nta/0 %itand (value1, value2)


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Oracle SQL Guide 38

'/0

SQL- sele!t %itand(1#4)# %itand(3#3)# %itand(2#2)# %itand(null#null)# %itand("1#"4)

fo$ dual.

ITND(1#4) ITND(3#3) ITND(2#2) ITND(NULL#NULL) ITND("1#"4)

"""""""""""""" """"""""""""""" """""""""""""" """""""""""""""""""""""" """""""""""""""""

1 3 2 "@

o) 8R'T'ST

This will give the geatest nu$%e5

S7nta/0 geatest (value1, value2, value3 valuen)

'/0 SQL- sele!t geatest(2# 1# 4)# geatest("2# "1# "4) fo$ dual.

8R'T'ST(2#1#4) 8R'T'ST("2#"1#"4)

"""""""""""""""""""" """""""""""""""""""""""

4 "2

If all the values ae eos then it will displa7 eo5

If all the paa$etes ae nulls then it will displa7 nothing5

If an7 of the paa$etes is null it will displa7 nothing5

p) L'ST

This will give the least nu$%e5

S7nta/0 least (value1, value2, value3 valuen)

'/0

SQL- sele!t least(2# 1# 4)# least("2# "1# "4) fo$ dual.

L'ST(2#1#4) L'ST("2#"1#"4)

"""""""""""""""""""" """""""""""""""""""""""


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Oracle SQL Guide 39

2 "4

If all the values ae eos then it will displa7 eo5



) COL'SC'

This will etun fist non"null value5

S7nta/0 !oales!e (value1, value2, value3 valuen)

'/0

SQL- sele!t !oales!e(2#1#4)# !oales!e(null#1#null#) fo$ dual.

COL'SC'(2#1#4) COL'SC'(NULL#1#NULL#)

""""""""""""""""""" """""""""""""""""""""""""""""""

2 1

STRIN8 BUNCTIONS

Init!ap

Uppe

Lowe

Length

Rpad

Lpad

Lti$

Rti$

Ti$

Tanslate

Repla!e

Sounde/

Con!at ( K XX K Con!atenation opeato)


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Oracle SQL Guide 40

s!ii

Ch

Su%st

Inst

De!ode

8eatest

Least

Coales!e

a) INITCA

This will !apitalie the initial lette of the sting5

S7nta/0 init!ap (!trin")

'/0

SQL- sele!t init!ap(=!o$pute=) fo$ dual.

INITCA

"""""""""""

Co$pute

%) UAA'R

This will !onvet the sting into uppe!ase5

S7nta/0 uppe (!trin")

'/0

SQL- sele!t uppe(=!o$pute=) fo$ dual.

UAA'R

"""""""""""

COMAUT'R

!) LO6'R


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Oracle SQL Guide 41

This will !onvet the sting into lowe!ase5

S7nta/0 lowe (!trin")

'/0

SQL- sele!t lowe(=COMAUT'R=) fo$ dual.

LO6'R

"""""""""""

!o$pute

d) L'N8T:

This will give length of the sting5

S7nta/0 length (!trin")

'/0

SQL- sele!t length(=!o$pute=) fo$ dual.

L'N8T:

"""""""""""

W

e) RAD

This will allows 7ou to pad the ight side of a !olu$n with an7 set of !haa!tes5

S7nta/0 pad (!trin", len"t *, paddin"_car+)

'/0

SQL- sele!t pad(=!o$pute=#2#=E=)# pad(=!o$pute=#2#=EY=) fo$ dual.


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Oracle SQL Guide 42

RAD(=COMAUT'R= RAD(=COMAUT'R=

"""""""""""""""""""""" """"""""""""""""""""""

!o$puteEEEEEEE !o$puteEYEYEYE

"" Default padding !haa!te was %lan& spa!e5

f) LAD

This will allows 7ou to pad the left side of a !olu$n with an7 set of !haa!tes5

S7nta/0 lpad (!trin", len"t *, paddin"_car+)

'/0

SQL- sele!t lpad(=!o$pute=#2#=E=)# lpad(=!o$pute=#2#=EY=) fo$ dual.

LAD(=COMAUT'R= LAD(=COMAUT'R=

""""""""""""""""""""" """""""""""""""""""""

EEEEEEE!o$pute EYEYEYE!o$pute

"" Default padding !haa!te was %lan& spa!e5

g) LTRIM

This will ti$ off unwanted !haa!tes fo$ the left end of sting5

S7nta/0 lti$ (!trin" *,unwanted_car!+)

'/0

SQL- sele!t lti$(=!o$pute=#=!o=)# lti$(=!o$pute=#=!o$=) fo$ dual.

LTRIM( LTRIM

"""""""" """""""""

$pute pute

SQL- sele!t lti$(=!o$pute=#=pute=)# lti$(=!o$pute=#=o$pute=) fo$ dual.


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Oracle SQL Guide 43

LTRIM(=C LTRIM(=C

"""""""""" """"""""""

!o$pute !o$pute

"" If 7ou haven;t spe!if7 an7 unwanted !haa!tes it will displa7 entie sting5

h) RTRIM

This will ti$ off unwanted !haa!tes fo$ the ight end of sting5

S7nta/0 ti$ (!trin" *, unwanted_car!+)

'/0 SQL- sele!t ti$(=!o$pute=#=e=)# ti$(=!o$pute=#=te=) fo$ dual.

RTRIM( RTRIM

"""""""" """""""""

!o$put !o$pu

SQL- sele!t ti$(=!o$pute=#=!o$put;)# ti$(=!o$pute=#=!o$pute=) fo$ dual.

RTRIM(=C RTRIM(=C"""""""""" """"""""""

!o$pute !o$pute

"" If 7ou haven;t spe!if7 an7 unwanted !haa!tes it will displa7 entie sting5

i) TRIM

This will ti$ off unwanted !haa!tes fo$ the %oth sides of sting5

S7nta/0 ti$ (unwanted_car! fo$!trin")

'/0

SQL- sele!t ti$( =i= fo$ =indiani=) fo$ dual.


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Oracle SQL Guide 44

TRIM(

"""""

ndian

SQL- sele!t ti$( leading=i= fo$ =indiani=) fo$ dual. "" this will wo& as LTRIM

TRIM(L

""""""

ndiani

SQL- sele!t ti$( tailing=i= fo$ =indiani=) fo$ dual. "" this will wo& as RTRIM

TRIM(T

""""""

Indian

J) TRNSLT'

This will epla!e the set of !haa!tes# !haa!te %7 !haa!te5

S7nta/0 tanslate (!trin", old_car!, new_car!)

'/0

SQL- sele!t tanslate(=india=#=in=#=/7=) fo$ dual.

TRNS

""""""""

/7d/a

&) R'ALC'

This will epla!e the set of !haa!tes# sting %7 sting5

S7nta/0 epla!e (!trin", old_car! *, new_car!+)


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Oracle SQL Guide 45

'/0

SQL- sele!t epla!e(=india=#=in=#=/7=)# epla!e(Kindia;#;in;) fo$ dual.

R'ALC' R'ALC'

""""""""""" """""""""""

+7dia dia

l) SOUND'+

This will %e used to find wods that sound li&e othe wods# e/!lusivel7 used in whee

!lause5

S7nta/0 sounde/ (!trin")

'/0

SQL- sele!t E fo$ e$p whee sounde/(ena$e) H sounde/(=SMIT=).

'MANO 'NM' >O M8R :IR'DT' SL D'ATNO

"""""""" """""""" """"" """"" """""""""""" """"""""" """"""""""

V4 SMIT: CL'RF V31 2V"D'C"W3 33 13

$) CONCT

This will %e used to !o$%ine two stings onl75

S7nta/0 !on!at (!trin"1, !trin"2)

'/0

SQL- sele!t !on!at(=!o$pute=#= opeato=) fo$ dual.

CONCT(=COMAUT'R=

"""""""""""""""""""""""""

!o$pute opeato


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Oracle SQL Guide 47

"""""

a

p) SUSTR

This will %e used to e/ta!t su%stings5

S7nta/0 su%st (!trin", !tart_cr_count *, no_o'_car!+)

'/0

SQL- sele!t su%st(=!o$pute=#1)# su%st(=!o$pute=#1#)# su%st(=!o$pute=#4#V)

fo$ dual.

SUSTR( SUST SUSTR"""""""""" """"""" """"""""o$pute o$put $pute

If no_o'_car!paa$ete is negative then it will displa7 nothing5

If %oth paa$etes e/!ept !trin"ae null o eos then it will displa7 nothing5

If no_o'_car!paa$ete is geate than the length of the sting then it ignoes and

!al!ulates %ased on the oginal sting length5

If !tart_cr_countis negative then it will e/ta!t the su%sting fo$ ight end5

2 1 4 @ V W

C O M A U T ' R

"W "V " " "@ "4 "1 "2

) INSTR

This will allows 7ou fo sea!hing though a sting fo set of !haa!tes5

S7nta/0 inst (!trin", !earc_!tr *, !tart_cr_count *, occurrence+ +)

'/0

SQL- sele!t inst(=info$ation=#=o=#@#2)# inst(=info$ation=#=o=#@#1) fo$ dual.


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Oracle SQL Guide 48

INSTR(=INBORMTION=#=O=#@#2) INSTR(=INBORMTION=#=O=#@#1)

"""""""""""""""""""""""""""""""""""" """""""""""""""""""""""""""""""""""""

@ 23

If 7ou ae not spe!if7ing !tart_cr_countand occurrencethen it will stat

sea!h fo$ the %eginning and finds fist o!!uen!e onl75

If %oth paa$etes !tart_cr_countand occurrenceae null# it will displa7

nothing5

) D'COD'

De!ode will a!t as value %7 value su%stitution5

Bo eve7 value of field# it will !he!&s fo a $at!h in a seies of if?then tests5

S7nta/0 de!ode (value, i'1, ten1, i'2, ten2, . el!e).

'/0

SQL- sele!t sal# de!ode(sal#33#=Low=#333#=:igh=#=Mediu$=) fo$ e$p.

SL D'COD'

""""" """""""""

33 Low

133 Mediu$

1333 Mediu$

433 Mediu$

4333 Mediu$

333 :igh

@333 Mediu$

333 :igh 2W33 Mediu$

2133 Mediu$

1333 Mediu$

1V33 Mediu$

1133 Mediu$


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Oracle SQL Guide 49

4133 Mediu$

SQL- sele!t de!ode(2#2#4)# de!ode(2#1#4#@#@#) fo$ dual.

D'COD'(2#2#4) D'COD'(2#1#4#@#@#)""""""""""""""""" """""""""""""""""""""""" 4

If the nu$%e of paa$etes ae odd and diffeent then de!ode will displa7

nothing5

If the nu$%e of paa$etes ae even and diffeent then de!ode will displa7 last

value5

If all the paa$etes ae null then de!ode will displa7 nothing5

If all the paa$etes ae eos then de!ode will displa7 eo5

s) 8R'T'ST

This will give the geatest sting5

S7nta/0 geatest (!trn"1, !trin"2, !trin"3 !trin"n)

'/0

SQL- sele!t geatest(=a=# =%=# =!=)# geatest(=satish=#=sinu=#=sa&eth=) fo$ dual.

8R'T 8R'T

""""""" """""""

! sinu



t) L'ST

This will give the least sting5


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Oracle SQL Guide 50

S7nta/0 geatest (!trn"1, !trin"2, !trin"3 !trin"n)

'/0

SQL- sele!t least(=a=# =%=# =!=)# least(=satish=#=sinu=#=sa&eth=) fo$ dual.

L'ST L'ST

""""""" """""""

a sa&eth



u) COL'SC'

This will gives the fist non"null sting5

S7nta/0 !oales!e (!trn"1, !trin"2, !trin"3 !trin"n)

'/0

SQL- sele!t !oales!e(=a=#=%=#=!=)# !oales!e(null#=a=#null#=%=) fo$ dual.

COL'SC' COL'SC'

""""""""""" """""""""""

a a

DT' BUNCTIONS

S7sdate Cuentdate

Cuentti$esta$p

S7sti$esta$p

Lo!alti$esta$p

D%ti$eone


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Oracle SQL Guide 52

'/0

SQL- sele!t !uentdate fo$ dual.

CURR'NTDT'

""""""""""""""""""

1@"D'C"3

!) CURR'NTTIM'STMA

This will etuns the !uent ti$esta$p with the a!tive ti$e one info$ation5

'/0 SQL- sele!t !uentti$esta$p fo$ dual.

CURR'NTTIM'STMA

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

1@"D'C"3 345@15@254W44 M G3043

d) S*STIM'STMA

This will etuns the s7ste$ date# in!luding fa!tional se!onds and ti$e one of the

data%ase5

'/0

SQL- sele!t s7sti$esta$p fo$ dual.

S*STIM'STMA

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

1@"D'C"3 345@5425W433 M G3043

e) LOCLTIM'STMA

This will etuns lo!al ti$esta$p in the a!tive ti$e one info$ation# with no ti$e


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Oracle SQL Guide 53

one info$ation shown5

'/0

SQL- sele!t lo!alti$esta$p fo$ dual.

LOCLTIM'STMA"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""1@"D'C"3 345@@52W531WV@ M

f) DTIM'ZON'

This will etuns the !uent data%ase ti$e one in UTC fo$at5 (Coodinated Univesal

Ti$e)

'/0

SQL- sele!t d%ti$eone fo$ dual.

DTIM'ZON'""""""""""""""" "3V033

g) S'SSIONTIM'ZON'

This will etuns the value of the !uent session;s ti$e one5

'/0

SQL- sele!t sessionti$eone fo$ dual.

S'SSIONTIM'ZON'

""""""""""""""""""""""""""""""""""""

G3043

h) TOC:R

This will %e used to e/ta!t vaious date fo$ats5

The availa%le date fo$ats as follows5

S7nta/0 to!ha (date#'ormat)


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Oracle SQL Guide 55

5D o 5C "" Displa7s D o C depending upon the date

BM "" Aefi/ to $onth o da7# suppesses padding of $onth o da7

T: "" Suffi/ to a nu$%e

SA "" suffi/ to a nu$%e to %e spelled out

SAT: "" Suffi/ !o$%ination of T: and SA to %e %oth spelled out

T:SA "" sa$e as SAT:

'/0

SQL- sele!t to!ha(s7sdate#=dd $onth 7777 hh0$i0ss a$ d7=) fo$ dual.

TOC:R(S*SDT'#=DD MONT: ****::0MI

""""""""""""""""""""""""""""""""""""""""""""""""""""

1@ de!e$%e 133 31034014 p$ sun

SQL- sele!t to!ha(s7sdate#=dd $onth 7ea=) fo$ dual.

TOC:R(S*SDT'#=DDMONT:*'R=)

"""""""""""""""""""""""""""""""""""""""""""""""""""""""

1@ de!e$%e two thousand si/

SQL- sele!t to!ha(s7sdate#=dd f$$onth 7ea=) fo$ dual.

TOC:R(S*SDT'#=DD BMMONT: *'R=)

"""""""""""""""""""""""""""""""""""""""""""""""""""""""

1@ de!e$%e two thousand si/

SQL- sele!t to!ha(s7sdate#=ddth DDT:=) fo$ dual.

TOC:R(S

""""""""""""

1@th 1@T:

SQL- sele!t to!ha(s7sdate#=ddspth DDSAT:=) fo$ dual.


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DDMONT:S

""""""""""""""""

22">UN"3

SQL- sele!t add$onths(todate(=22"Jan"23=#=dd"$on"7777=)# ") fo$ dual.

DDMONT:

"""""""""""""""

22"U8"W

If no_o'_mont!is eo then it will displa7 the sa$e date5

If no_o'_mont!is null then it will displa7 nothing5

&) MONT:S'T6''N

This will give diffeen!e of $onths %etween two dates5

S7nta/0 $onths%etween (date1, date2)

'/0

SQL- sele!t $onths%etween(todate(=22"aug"23=#=dd"$on"7777=)# todate(=22"

Jan"23=#=dd"$on"7777=)) fo$ dual.

MONT:S'T6''N(TODT'(=22"U8"23=#=DD"MON"****=)#TODT'(=22">N"

23=#=DD"MON"****=))

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" V

SQL- sele!t $onths%etween(todate(=22"Jan"23=#=dd"$on"7777=)# todate(=22"

aug"23=#=dd"$on"7777=)) fo$ dual.


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MONT:S'T6''N(TODT'(=22">N"23=#=DD"MON"****=)#TODT'(=22"U8"

23=#=DD"MON"****=))

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

"V

l) N'+TD*

This will podu!e ne/t da7 of the given da7 fo$ the spe!ified date5

S7nta/0 ne/tda7 (date, day)

'/0

SQL- sele!t ne/tda7(todate(=1@"de!"133=#=dd"$on"7777=)#=sun=) fo$ dual.

N'+TD*("""""""""""""

42"D'C"3

"" If the da7 paa$ete is null then it will displa7 nothing5

$) LSTD*

This will podu!e last da7 of the given date5

S7nta/0 lastda7 (date)

'/0

SQL- sele!t lastda7(todate(=1@"de!"133=#=dd"$on"7777=)#=sun=) fo$ dual.

LSTD*(

"""""""""""""

42"D'C"3

n) '+TRCT

This is used to e/ta!t a potion of the date value5


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S7nta/0 e/ta!t ((7ea X $onth X da7 X hou X $inute X se!ond)# date)

'/0

SQL- sele!t e/ta!t(7ea fo$ s7sdate) fo$ dual.

'+TRCT(*'RBROMS*SDT')

""""""""""""""""""""""""""""""""""""

133

"" *ou !an e/ta!t onl7 one value at a ti$e5

o) 8R'T'ST

This will give the geatest date5

S7nta/0 geatest (date1, date2, date3 daten)

'/0

SQL- sele!t geatest(todate(=22"Jan"3=#=dd"$on"77=)#todate(=22"$a"3=#=dd"

$on"77=)#todate(=22"ap"3=#=dd"$on"77=)) fo$ dual.

8R'T'ST( """""""""""""

22"AR"3

p) L'ST

This will give the least date5

S7nta/0 least (date1, date2, date3 daten)

'/0

SQL- sele!t least(todate(=22"Jan"3=#=dd"$on"77=)#todate(=22"$a"3=#=dd"$on"

77=)#todate(=22"ap"3=#=dd"$on"77=)) fo$ dual.

L'ST(


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"""""""""""""

22">N"3

) ROUND

Round will ounds the date to whi!h it was eual to o geate than the given date5

S7nta/0 ound (date, (da7 X $onth X 7ea))

If the se!ond paa$ete was yearthen ound will !he!&s the $onth of the given date in

the following anges5

>N "" >UN>UL "" D'C

If the $onth falls %etween >N and >UN then it etuns the fist da7 of the !uent 7ea5

If the $onth falls %etween >UL and D'C then it etuns the fist da7 of the ne/t 7ea5

If the se!ond paa$ete was montthen ound will !he!&s the da7 of the given date in

the following anges5

2 "" 2

2 "" 42

If the da7 falls %etween 2 and 2 then it etuns the fist da7 of the !uent $onth5

If the da7 falls %etween 2 and 42 then it etuns the fist da7 of the ne/t $onth5

If the se!ond paa$ete was daythen ound will !he!&s the wee& da7 of the given date

in the following anges5

SUN "" 6'D

T:U "" SUN

If the wee& da7 falls %etween SUN and 6'D then it etuns the pevious sunda75

If the wee&da7 falls %etween T:U and SUN then it etuns the ne/t sunda75


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If the se!ond paa$ete was null then it etuns nothing5

If the 7ou ae not spe!if7ing the se!ond paa$ete then ound will esets the ti$e to the %egining

of the !uent da7 in !ase of use spe!ified date5

If the 7ou ae not spe!if7ing the se!ond paa$ete then ound will esets the ti$e to the %egining

of the ne/t da7 in !ase of s7sdate5

'/0

SQL- sele!t ound(todate(=1@"de!"3@=#=dd"$on"77=)#=7ea=)# ound(todate(=22"$a"

3=#=dd"$on"77=)#=7ea=) fo$ dual.

ROUND(TO ROUND(TO

"""""""""""" """""""""""""""

32">N"3 32">N"3

SQL- sele!t ound(todate(=22"Jan"3@=#=dd"$on"77=)#=$onth=)# ound(todate(=2W"

Jan"3@=#=dd"$on"77=)#=$onth=) fo$ dual.

ROUND(TO ROUND(TO

""""""""""""" """""""""""""""

32">N"3@ 32"B'"3@

SQL- sele!t ound(todate(=1"de!"3=#=dd"$on"77=)#=da7=)# ound(todate(=1"de!"

3=#=dd"$on"77=)#=da7=) fo$ dual.

ROUND(TO ROUND(TO

"""""""""""""" """"""""""""""

1@"D'C"3 42"D'C"3

SQL- sele!t to!ha(ound(todate(=1@"de!"3=#=dd"$on"77=))# =dd $on 7777

hh0$i0ss a$=) fo$ dual.

TOC:R(ROUND(TODT'(=

"""""""""""""""""""""""""""""""""

1@ de! 133 21033033 a$


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) TRUNC

Tun! will !hops off the date to whi!h it was eual to o less than the given date5

S7nta/0 tun! (date, (da7 X $onth X 7ea))

If the se!ond paa$ete was yearthen it alwa7s etuns the fist da7 of the !uent 7ea5

If the se!ond paa$ete was montthen it alwa7s etuns the fist da7 of the !uent $onth5

If the se!ond paa$ete was daythen it alwa7s etuns the pevious sunda75

If the se!ond paa$ete was null then it etuns nothing5

If the 7ou ae not spe!if7ing the se!ond paa$ete then tun& will esets the ti$e to the %egining

of the !uent da75

'/0

SQL- sele!t tun!(todate(=1@"de!"3@=#=dd"$on"77=)#=7ea=)# tun!(todate(=22"$a"

3=#=dd"$on"77=)#=7ea=) fo$ dual.

TRUNC(TO TRUNC(TO

""""""""""""" """"""""""""""

32">N"3@ 32">N"3

SQL- sele!t tun!(todate(=22"Jan"3@=#=dd"$on"77=)#=$onth=)# tun!(todate(=2W"Jan"

3@=#=dd"$on"77=)#=$onth=) fo$ dual.

TRUNC(TO TRUNC(TO

""""""""""""" """""""""""""

32">N"3@ 32">N"3@

SQL- sele!t tun!(todate(=1"de!"3=#=dd"$on"77=)#=da7=)# tun!(todate(=1"de!"

3=#=dd"$on"77=)#=da7=) fo$ dual.

TRUNC(TO TRUNC(TO

""""""""""""" """"""""""""""

1@"D'C"3 1@"D'C"3


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SQL- sele!t to!ha(tun!(todate(=1@"de!"3=#=dd"$on"77=))# =dd $on 7777 hh0$i0ss

a$=) fo$ dual.

TOC:R(TRUNC(TODT'(=

"""""""""""""""""""""""""""""""""

1@ de! 133 21033033 a$

s) N'6TIM'

This will give the desied ti$eone;s date and ti$e5

S7nta/0 newti$e (date, current_timeone, de!ired_timeone)

vaila%le ti$eones ae as follows5

TIM'ZON'S

ST?DT "" tlanti! standad?da7 light ti$e

ST?DT "" eing standad?da7 light ti$e

CST?CDT "" Cental standad?da7 light ti$e

'ST?'DT "" 'asten standad?da7 light ti$e8MT "" 8eenwi!h $ean ti$e

:ST?:DT "" las&a":awaii standad?da7 light ti$e

MST?MDT "" Mountain standad?da7 light ti$e

NST "" Newfoundland standad ti$e

AST?ADT "" Aa!ifi! standad?da7 light ti$e

*ST?*DT "" *u&on standad?da7 light ti$e

'/0

SQL- sele!t to!ha(newti$e(s7sdate#=g$t=#=7st=)#=dd $on 7777 hh0$i0ss a$=) fo$

dual.

TOC:R(N'6TIM'(S*SDT

"""""""""""""""""""""""""""""""""""

1@ de! 133 3102013 p$


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'/0

SQL- sele!t uid fo$ dual.

UID

""""""""""

42

%) US'R

This will etuns the login;s use na$e5

'/0

SQL- sele!t use fo$ dual.

US'R

""""""""""""""""

SF'T:

!) 9SIZ'

This will etuns the nu$%e of %7tes in the e/pession5

'/0

SQL- sele!t vsie(214)# vsie(=!o$pute=)# vsie(=21"Jan"3=) fo$ dual.

9SIZ'(214) 9SIZ'(=COMAUT'R=) 9SIZ'(=21">N"3=)

""""""""""""" """"""""""""""""""""""" """"""""""""""""""""""

4 W

d) RNF

This will give the non"seuential an&ing5


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Oracle SQL Guide 66

'/0

SQL- sele!t ownu$#sal fo$ (sele!t sal fo$ e$p ode %7 sal des!).

RO6NUM SL

"""""""""" """"""""""

2 333

1 4333

4 4333

@ 1V

1W3

1@3

V 233

W 233 2433

23 213

22 213

21 2233

24 2333

2@ 3

2 W33

SQL- sele!t an&(1V) within goup(ode %7 sal des!) fo$ e$p.

RNF(1V)6IT:IN8ROUA(ORD'R*SLD'SC)

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""

@

d) D'NS'RNF

This will give the seuential an&ing5

'/0

SQL- sele!t densean&(1V) within goup(ode %7 sal des!) fo$ e$p.


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Oracle SQL Guide 67

D'NS'RNF(1V)6IT:IN8ROUA(ORD'R*SLD'SC)

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

4

CON9'RSION BUNCTIONS

intonu$

Chatoowid

Rowidto!ha

Tonu$%e

To!ha

Todate

a) INTONUM

This will !onvet the %ina7 value to its nu$ei!al euivalent5

S7nta/0 %intonu$( binary_bit!)

'/0

SQL- sele!t %intonu$(2#2#3) fo$ dual.

INTONUM(2#2#3)

""""""""""""""""""""""""

If all the %its ae eo then it podu!es eo5

If all the %its ae null then it podu!es an eo5

%) C:RTORO6ID

This will !onvet a !haa!te sting to a!t li&e an intenal oa!le ow identifie o owid5

!) RO6IDTOC:R


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Oracle SQL Guide 68

This will !onvet an intenal oa!le ow identifie o owid to !haa!te sting5

d) TONUM'R

This will !onvet a !ha o va!ha to nu$%e5

e) TOC:R

This will !onvet a nu$%e o date to !haa!te sting5

f) TODT'

This will !onvet a nu$%e# !ha o va!ha to a date5

8ROUA BUNCTIONS

Su$

vg

Ma/

Min

Count

8oup fun!tions will %e applied on all the ows %ut podu!es single output5

a) SUM

This will give the su$ of the values of the spe!ified !olu$n5

S7nta/0 su$ (column) '/0

SQL- sele!t su$(sal) fo$ e$p.

SUM(SL)

""""""""""


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Oracle SQL Guide 69

4W33

%) 98

This will give the aveage of the values of the spe!ified !olu$n5

S7nta/0 avg (column)

'/0

SQL- sele!t avg(sal) fo$ e$p.

98(SL)

"""""""""""""""

1VV52@1W

!) M+

This will give the $a/i$u$ of the values of the spe!ified !olu$n5

S7nta/0 $a/ (column)

'/0

SQL- sele!t $a/(sal) fo$ e$p.

M+(SL)

""""""""""

333

d) MIN

This will give the $ini$u$ of the values of the spe!ified !olu$n5

S7nta/0 $in (column)

'/0

SQL- sele!t $in(sal) fo$ e$p.


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Oracle SQL Guide 70

MIN(SL)

""""""""""

33

e) COUNT

This will give the !ount of the values of the spe!ified !olu$n5

S7nta/0 !ount (column)

'/0 SQL- sele!t !ount(sal)#!ount(E) fo$ e$p.

COUNT(SL) COUNT(E)

"""""""""""""" """"""""""""

2@ 2@

CONSTRINTS

Constaints ae !ategoied as follows5

Do$ain integit7 !onstaints

Not null

Che!&

'ntit7 integit7 !onstaints

Uniue

Ai$a7 &e7

Refeential integit7 !onstaints

Boeign &e7

Constaints ae alwa7s atta!hed to a !olu$n not a ta%le5


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Oracle SQL Guide 71

6e !an add !onstaints in thee wa7s5

Colu$n level "" along with the !olu$n definition

Ta%le level "" afte the ta%le definition

lte level "" using alte !o$$and

6hile adding !onstaints 7ou need not spe!if7 the na$e %ut the t7pe onl7# oa!le will intenall7 na$e the

!onstaint5

If 7ou want to give a na$e to the !onstaint# 7ou have to use the !onstaint !lause5

NOT NULL

This is used to avoid null values5

6e !an add this !onstaint in !olu$n level onl75

'/0

SQL- !eate ta%le student(no nu$%e(1) not null# na$e va!ha(23)# $a&s

nu$%e(4)).

SQL- !eate ta%le student(no nu$%e(1) !onstaint nn not null# na$e va!ha(23)#

$a&s nu$%e(4)).

C:'CF

This is used to inset the values %ased on spe!ified !ondition5

6e !an add this !onstaint in all thee levels5

'/0

COLUMN L'9'L

SQL- !eate ta%le student(no nu$%e(1) # na$e va!ha(23)# $a&s nu$%e(4) !he!&

($a&s - 433)).


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Oracle SQL Guide 72

SQL- !eate ta%le student(no nu$%e(1) # na$e va!ha(23)# $a&s nu$%e(4)

!onstaint !h !he!&($a&s - 433)).

TL' L'9'L

SQL- !eate ta%le student(no nu$%e(1) # na$e va!ha(23)# $a&s nu$%e(4)# !he!&

($a&s - 433)).

SQL- !eate ta%le student(no nu$%e(1) # na$e va!ha(23)# $a&s nu$%e(4)#

!onstaint !h !he!&($a&s - 433)).

LT'R L'9'L

SQL- alte ta%le student add !he!&($a&s-433).

SQL- alte ta%le student add !onstaint !h !he!&($a&s-433).

UNIQU'

This is used to avoid dupli!ates %ut it allow nulls5


'/0

COLUMN L'9'L

SQL- !eate ta%le student(no nu$%e(1) uniue# na$e va!ha(23)# $a&s

nu$%e(4)).

SQL- !eate ta%le student(no nu$%e(1) !onstaint un uniue# na$e va!ha(23)#

$a&s nu$%e(4)).

TL' L'9'L


uniue(no)).


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Oracle SQL Guide 73


!onstaint un uniue(no)).

LT'R L'9'L

SQL- alte ta%le student add uniue(no).

SQL- alte ta%le student add !onstaint un uniue(no).

ARIMR* F'*

This is used to avoid dupli!ates and nulls5 This will wo& as !o$%ination of uniue and not null5

Ai$a7 &e7 alwa7s atta!hed to the paent ta%le5


'/0

COLUMN L'9'L

SQL- !eate ta%le student(no nu$%e(1) pi$a7 &e7# na$e va!ha(23)# $a&s

nu$%e(4)).

SQL- !eate ta%le student(no nu$%e(1) !onstaint p& pi$a7 &e7# na$e va!ha(23)#

$a&s nu$%e(4)).

TL' L'9'L


pi$a7 &e7(no)).


!onstaint p& pi$a7 &e7(no)).

LT'R L'9'L

SQL- alte ta%le student add pi$a7 &e7(no).


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Oracle SQL Guide 75

SQL- !eate ta%le e$p(e$pno nu$%e(1)# ena$e va!ha(23)# deptno nu$%e(1)#

pi$a7 &e7(e$pno)# foeign &e7(deptno) efeen!es dept(deptno) on delete

!as!ade).


!onstaint p& pi$a7 &e7(e$pno)# !onstaint f& foeign &e7(deptno) efeen!es

dept(deptno) on delete !as!ade).

LT'R L'9'L

SQL- alte ta%le e$p add foeign &e7(deptno) efeen!es dept(deptno) on delete

!as!ade.

SQL- alte ta%le e$p add !onstaint f& foeign &e7(deptno) efeen!es dept(deptno) ondelete !as!ade.

COMAOSIT' F'*S

!o$posite &e7 !an %e defined on a !o$%ination of !olu$ns5

6e !an define !o$posite &e7s on entit7 integit7 and efeential integit7 !onstaints5

Co$posite &e7 !an %e defined in ta%le and alte levels onl75

'/0

UNIQU' (TL' L'9'L)


uniue(no#na$e)).


!onstaint un uniue(no#na$e)).

UNIQU' (LT'R L'9'L)

SQL- alte ta%le student add uniue(no#na$e).

SQL- alte ta%le student add !onstaint un uniue(no#na$e).

ARIMR* F'* (TL' L'9'L)


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Oracle SQL Guide 76


pi$a7 &e7(no#na$e)).


!onstaint p& pi$a7 &e7(no#na$e)).

ARIMR* F'* (LT'R L'9'L)

SQL- alte ta%le student add pi$a7 &e7(no#an$e).

SQL- alte ta%le student add !onstaint p& pi$a7 &e7(no#na$e).

BOR'I8N F'* (TL' L'9'L)


dna$e va!ha(23)# pi$a7 &e7(e$pno)# foeign &e7(deptno#dna$e) efeen!es

dept(deptno#dna$e)).


dna$e va!ha(23)# !onstaint p& pi$a7 &e7(e$pno)# !onstaint f& foeign

&e7(deptno#dna$e) efeen!es dept(deptno#dna$e)).

BOR'I8N F'* (LT'R L'9'L)

SQL- alte ta%le e$p add foeign &e7(deptno#dna$e) efeen!es dept(deptno#dna$e).

SQL- alte ta%le e$p add !onstaint f& foeign &e7(deptno#dna$e) efeen!es

dept(deptno#dna$e).

D'B'RRL' CONSTRINTS

'a!h !onstaint has two additional atti%utes to suppot defeed !he!&ing of !onstaints5

Defeed initiall7 i$$ediate

Defeed initiall7 defeed

Defeed initiall7 i$$ediate !he!&s fo !onstaint violation at the ti$e of inset5

Defeed initiall7 defeed !he!&s fo !onstaint violation at the ti$e of !o$$it5


77/323

Oracle SQL Guide 77

'/0

SQL- !eate ta%le student(no nu$%e(1)# na$e va!ha(23)# $a&s nu$%e(4)#

!onstaint un uniue(no) defeed initiall7 i$$ediate).

SQL- !eate ta%le student(no nu$%e(1)# na$e va!ha(23)# $a&s nu$%e(4)#

!onstaint un uniue(no) defeed initiall7 defeed).

SQL- alte ta%le student add !onstaint un uniue(no) defea%le initiall7 defeed.

SQL- set !onstaints all i$$ediate.

This will ena%le all the !onstaints violations at the ti$e of inseting5

SQL- set !onstaints all defeed.

This will ena%le all the !onstaints violations at the ti$e of !o$$it5

OA'RTIONS 6IT: CONSTRINTS

Aossi%le opeations with !onstaints as follows5

'na%le

Disa%le

'nfo!e

Dop

'NL'

This will ena%le the !onstaint5 efoe ena%le# the !onstaint will !he!& the e/isting data5

'/0

SQL- alte ta%le student ena%le !onstaint un.

DISL'

This will disa%le the !onstaint5

'/0


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Oracle SQL Guide 78

SQL- alte ta%le student ena%le !onstaint un.

'NBORC'

This will enfo!e the !onstaint athe than ena%le fo futue insets o updates5

This will not !he!& fo e/isting data while enfo!ing data5

'/0

SQL- alte ta%le student enfo!e !onstaint un.

DROA

This will e$ove the !onstaint5

'/0

SQL- alte ta%le student dop !onstaint un.

On!e the ta%le is dopped# !onstaints auto$ati!all7 will dop5

CS' ND D'BULT

CS'

Case is si$ila to de!ode %ut easie to undestand while going though !oding

'/0

SQL- Sele!t sal#

Case sal

6hen 33 then Klow;

6hen 333 then Khigh;

'lse K$ediu$;

'nd !ase

Bo$ e$p.


79/323

Oracle SQL Guide 79

SL CS'

""""" """"""""

33 low

133 $ediu$

1333 $ediu$

433 $ediu$

4333 $ediu$

333 high

@333 $ediu$

333 high

2W33 $ediu$

2133 $ediu$

1333 $ediu$ 1V33 $ediu$

1133 $ediu$

4133 $ediu$

D'BULT

-e'ault!an %e !onsideed as a su%stitute %ehavio of not null!onstaint when applied to new ows %eing

enteed into the ta%le5

6hen 7ou define a !olu$n with the de'ault&e7wod followed %7 a value# 7ou ae a!tuall7 telling the

data%ase that# on inset if a ow was not assigned a value fo this !olu$n# use the default value that 7ou

have spe!ified5

Default is applied onl7 duing insetion of new ows5

'/0

SQL- !eate ta%le student(no nu$%e(1) default 22#na$e va!ha(1)).

SQL- inset into student values(2#=a=).

SQL- inset into student(na$e) values(=%=).



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NO NM'

"""""" """""""""

2 a

22 %

SQL- inset into student values(null# K!;).


NO NM'

"""""" """""""""

2 a 22 %

C

"" Default !an not oveide nulls5

STRCT DT T*A'S

So$e ti$es 7ou $a7 want t7pe whi!h holds all t7pes of data in!luding nu$%es# !has and spe!ial

!haa!tes so$ething li&e this5 *ou !an not a!hieve this using pe"defined t7pes5

*ou !an define !usto$ t7pes whi!h holds 7ou desied data5

'/0

Suppose in a ta%le we have addess !olu$n whi!h holds hno and !it7 info$ation5

6e will define a !usto$ t7pe whi!h holds %oth nu$ei! as well as !ha data5

CR'TIN8 DT

SQL- !eate t7pe add as o%Je!t(hno nu$%e(4)#!it7 va!ha(23)). ?

CR'TIN8 TL' S'D ON DT

SQL- !eate ta%le student(no nu$%e(1)#na$e va!ha(1)#addess add).


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INS'RTIN8 DT INTO DT TL'S

SQL- inset into student values(2#=a=#add(222#=h7d=)).

SQL- inset into student values(1#=%=#add(111#=%ang=)).

SQL- inset into student values(4#=!=#add(444#=delhi=)).

S'L'CTIN8 DT BROM DT TL'S


NO NM' DDR'SS(:NO# CIT*)

""" """"""" """""""""""""""""""""""""

2 a DDR(222# =h7d=) 1 % DDR(111# =%ang=)

4 ! DDR(444# =delhi=)

SQL- sele!t no#na$e#s5addess5hno#s5addess5!it7 fo$ student s.

NO NM' DDR'SS5:NO DDR'SS5CIT*

"""" """"""" """"""""""""""""" """"""""""""""""

2 a 222 h7d 1 % 111 %ang

4 ! 444 delhi

UADT' 6IT: DT TL'S

SQL- update student s set s5addess5!it7 H =%o$%a7= whee s5addess5hno H 444.



"""" """"""" """"""""""""""""" """"""""""""""""

2 a 222 h7d

1 % 111 %ang

4 ! 444 %o$%a7


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D'L'T' 6IT: DT TL'S

SQL- delete student s whee s5addess5hno H 222.



"""" """"""" """"""""""""""""" """"""""""""""""

1 % 111 %ang

4 ! 444 %o$%a7

DROAAIN8 DT

SQL- dop t7pe add.

O>'CT 9I'6S ND M'T:ODS

O>'CT 9I'6S

If 7ou want to i$ple$ent o%Je!ts with the e/isting ta%le# o%Je!t views !o$e into pi!tue5

*ou define the o%Je!t and !eate a view whi!h elates this o%Je!t to the e/isting ta%le nothing %ut ob#ect

view5

O%Je!t views ae used to elate the use defined o%Je!ts to the e/isting ta%le5

'/0

2) ssu$e that the ta%le student has alead7 %een !eated with the following !olu$ns

SQL- !eate ta%le student(no nu$%e(1)#na$e va!ha(23)#hno nu$%e(4)#!it7

va!ha(23)).

1) Ceate the following t7pes

SQL- !eate t7pe add as o%Je!t(hno nu$%e(1)#!it7 va!ha(23)).?

SQL- !eate t7pe stud as o%Je!t(na$e va!ha(23)#addess add).?

4) Relate the o%Je!ts to the student ta%le %7 !eating the o%Je!t view

SQL- !eate view studentov(no#studinfo) as sele!t no#stud(na$e#add(hno#!it7))

fo$ student.


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@) Now 7ou !an inset data into student ta%le in two wa7s

a) 7 egula inset

SQL- Inset into student values(2#;sudha;#222#;h7d;).

%) 7 using o%Je!t view

SQL- Inset into studentov values(2#stud(Ksudha;#add(222#;h7d;))).

M'T:ODS

*ou !an define $ethods whi!h ae nothing %ut fun!tions in t7pes and appl7 in the ta%les whi!h holds the

t7pes.

'/0

2) Defining $ethods in t7pes

SQL- Ceate t7pe stud as o%Je!t(na$e va!ha(23)#$a&s nu$%e(4)#

Me$%e fun!tion $a&sf($a&s in nu$%e) etun nu$%e#

Aag$a esti!tefeen!es($a&sf#wnds#nds#wnps#fnps)).?

1) Defining t7pe %od7

SQL- Ceate t7pe %od7 stud as

Me$%e fun!tion $a&sf($a&s in nu$%e) etun nu$%e is

egin

Retun ($a&sG233).

'nd $a&sf.

'nd.?

4) Ceate a ta%le using stud t7pe

SQL- Ceate ta%le student(no nu$%e(1)#info stud).

@) Inset so$e data into student ta%le

SQL- Inset into student values(2#stud(Ksudha;#233)).

) Using $ethod in sele!t

SQL- Sele!t s5info5$a&sf(s5info5$a&s) fo$ student s.

"" :ee we ae using the pag$a esti!tefeen!es to avoid the wites to the

Data%ase5

9RR*S ND N'ST'D TL'S


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Oracle SQL Guide 84

9RR*S

va7ing aa7 allows 7ou to stoe epeating atti%utes of a e!od in a single ow %ut with li$it5

'/0

2) 6e !an !eate vaa7s using oa!le t7pes as well as use defined t7pes5

a) 9aa7 using pe"defined t7pes

SQL- Ceate t7pe va as vaa7() of va!ha(23).?

%) 9aa7s using use defined t7pes

SQL- Ceate t7pe add as o%Je!t(hno nu$%e(4)#!it7 va!ha(23)).?

SQL- Ceate t7pe va as vaa7() of add.?

1) Using vaa7 in ta%le

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(23)#addess va). 4) Inseting values into vaa7 ta%le

SQL- Inset into student values(2#;sudha;#va(add(222#;h7d;))).

SQL- Inset into student values(1#;Jagan;#va(add(222#;h7d;)#add(111#;%ang;))).

@) Sele!ting data fo$ vaa7 ta%le

SQL- Sele!t E fo$ student.

"" This will displa7 vaa7 !olu$n data along with vaa7 and adt.

SQL- Sele!t no#na$e# s5E fo$ student s2# ta%le(s25addess) s.

"" This will displa7 in geneal fo$at ) Instead of s5E 7ou !an spe!if7 the !olu$ns in vaa7

SQL- Sele!t no#na$e# s5hno#s5!it7 fo$ student s2#ta%le(s25addess) s.

"" Update and delete not possi%le in vaa7s5

"" :ee we used ta%le fun!tion whi!h will ta&e the vaa7 !olu$n as input fo podu!ing

output e/!luding vaa7 and t7pes5

N'ST'D TL'S

nested ta%le is# as its na$e i$plies# a ta%le within a ta%le5 In this !ase it is a ta%le that is epesented as

a !olu$n within anothe ta%le5

Nested ta%le has the sa$e effe!t of vaa7s %ut has no li$it5


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Oracle SQL Guide 85

'/0

2) 6e !an !eate nested ta%les using oa!le t7pes and use defined t7pes whi!h has no

li$it5

a) Nested ta%les using pe"defined t7pes

SQL- Ceate t7pe nt as ta%le of va!ha(23).?

%) Nested ta%les using use defined t7pes

SQL- Ceate t7pe add as o%Je!t(hno nu$%e(4)#!it7 va!ha(23)).?

SQL- Ceate t7pe nt as ta%le of add.?

1) Using nested ta%le in ta%le

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(23)#addess nt) nested ta%le

addess stoe as studentte$p.

4) Inseting values into ta%le whi!h has nested ta%le SQL- Inset into student values (2#;sudha;#nt(add(222#;h7d;))).

SQL- Inset into student values (1#;Jagan;#nt(add(222#;h7d;)#add(111#;%ang;))).

@) Sele!ting data fo$ ta%le whi!h has nested ta%le

SQL- Sele!t E fo$ student.

"" This will displa7 nested ta%le !olu$n data along with nested ta%le and adt.

SQL- Sele!t no#na$e# s5E fo$ student s2# ta%le(s25addess) s.

"" This will displa7 in geneal fo$at

) Instead of s5E 7ou !an spe!if7 the !olu$ns in nested ta%le SQL- Sele!t no#na$e# s5hno#s5!it7 fo$ student s2#ta%le(s25addess) s.

) Inseting nested ta%le data to the e/isting ow

SQL- Inset into ta%le(sele!t addess fo$ student whee noH2)

values(add(#;!hennai;)).

V) Update in nested ta%les

SQL- Update ta%le(sele!t addess fo$ student whee noH1) s set s5!it7H;%o$%a7;

whee s5hno H 111.

W) Delete in nested ta%le

SQL- Delete ta%le(sele!t addess fo$ student whee noH4) s whee s5hnoH444.

DT MOD'L

LLCOLLT*A'S

LLT*A'S


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Oracle SQL Guide 86

DCOLLT*A'S

DT*A'S

US'RCOLLT*A'S

US'RT*A'S

BLS:CF QU'R*

Used to etieve the data whi!h has %een alead7 !o$$itted with out going fo e!ove75

Blash%a!&s ae of two t7pes

Ti$e %ase flash%a!&

SCN %ased flash%a!& (SCN stands fo S7ste$ Change Nu$%e)

'/0

2) Using ti$e %ased flash%a!&

a) SQL- Sele!t Efo$ student.

"" This will displa7 all the ows

%) SQL- Delete student.

!) SQL- Co$$it. "" this will !o$$it the wo&5

d) SQL- Sele!t Efo$ student.

"" :ee it will displa7 nothing

e) Then e/e!ute the following po!edues

SQL- '/e! d%$sflash%a!&5ena%leatti$e(s7sdate"1?2@@3)

f) SQL- Sele!t Efo$ student.

"" :ee it will displa7 the lost data

"" The lost data will !o$e %ut the !uent s7ste$ ti$e was used

g) SQL- '/e! d%$sflash%a!&5disa%le

"" :ee we have to disa%le the flash%a!& to ena%le it again

1) Using SCN %ased flash%a!&

a) De!lae a vaia%le to stoe SCN

SQL- 9aia%le s nu$%e

%) 8et the SCN

SQL- '/e! 0s 0H e/e! d%$sflash%a!&5gets7ste$!hangenu$%e


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Oracle SQL Guide 87

!) To see the SCN

SQL- Aint s

d) Then e/e!ute the following po!edues

SQL- '/e! d%$sflash%a!&5ena%leats7ste$!hangenu$%e(0s)

SQL- '/e! d%$sflash%a!&5disa%le

'+T'RNL TL'S

*ou !an use e/tenal ta%le featue to a!!ess e/tenal files as if the7 ae ta%les inside the data%ase5

6hen 7ou !eate an e/tenal ta%le# 7ou define its stu!tue and lo!ation with in oa!le5

6hen 7ou ue7 the ta%le# oa!le eads the e/tenal ta%le and etuns the esults Just as if the data had

%een stoed with in the data%ase5

CC'SSIN8 '+T'RNL TL' DT

To a!!ess e/tenal files fo$ within oa!le# 7ou $ust fist use the !eate die!to7 !o$$and to define a

die!to7 o%Je!t pointing to the e/tenal file lo!ation

Uses who will a!!ess the e/tenal files $ust have the ead and wite pivilege on the die!to75

'/0

CR'TIN8 DIR'CTOR* ND OS L'9'L BIL'

SQL- Slplus s7ste$?$anage

SQL- Ceate die!to7 sa&ethdi as K?9isd%?visd%?5153?e/tenal;.

SQL- 8ant all on die!to7 sa&ethdi to sa&eth.

SQL- Conn sa&eth?sa&eth

SQL- Spool dept5lst

SQL- Sele!t deptno XX K#; XX dna$e XX K#; XX lo! fo$ dept.

SQL- Spool off

CR'TIN8 '+T'RNL TL'

SQL- Ceate ta%le depte/t

(deptno nu$%e(1)#


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Oracle SQL Guide 88

Dna$e va!ha(2@)#

Lo! va!ha(24))

Oganiation e/tenal ( t7pe oa!leloade

Default die!to7 sa&ethdi

!!ess paa$etes

( e!ods deli$ited %7 newline

Bields te$inated %7 P#

( deptno nu$%e(1)#

Dna$e va!ha(2@)#

Lo! va!ha(24)))

Lo!ation (K?9isd%?visd%?5153?dept5lst;)).

S'L'CTIN8 DT BROM '+T'RNL TL'

SQL- sele!t E fo$ depte/t.

This will ead fo$ dept5lst whi!h is a opeating s7ste$ level file5

LIMITTIONS ON '+T'RNL TL'S

a) *ou !an not pefo$ inset# update# and delete opeations

a) Inde/ing not possi%leb) Constaints not possi%le

'N'BITS OB '+T'RNL TL'S

a) Queies of e/tenal ta%les !o$plete ve7 ui!&l7 even though a full ta%le s!an id euied with

ea!h a!!ess

%) *ou !an Join e/tenal ta%les to ea!h othe o to standad ta%les

R'B D'R'B 9LU'

R'B

The ef fun!tion allows efeen!ing of e/isting ow o%Je!ts5

'a!h of the ow o%Je!ts has an o%Je!t id value assigned to it5

The o%Je!t id assigned !an %e seen %7 using ef fun!tion5


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Oracle SQL Guide 89

D'R'B

The deef fun!tion pefo$s opposite a!tion5

It ta&es a efeen!e value of o%Je!t id and etuns the value of the ow o%Je!ts5

9LU'

'ven though the pi$a7 ta%le is o%Je!t ta%le# still it displa7s the ows in geneal fo$at5

To displa7 the entie stu!tue of the o%Je!t# this will %e used5

'/0

2) !eate vendotadt t7pe

SQL- Ceate t7pe vendoadt as o%Je!t (vendo!ode nu$%e(1)# vendona$e

va!ha(1)# vendoaddess va!ha(23)).?

1) !eate o%Je!t ta%les vendos and vendos2

SQL- Ceate ta%le vendos of vendoadt.

SQL- Ceate ta%le vendos2 of vendoadt.

4) inset the data into o%Je!t ta%les

SQL- inset into vendos values(2# Ka;# Kh7d;).

SQL- inset into vendos values(1# K%;# K%ang;).

SQL- inset into vendos2 values(4# K!;# Kdelhi;).

SQL- inset into vendos2 values(@# Kd;# K!hennai;).

@) !eate anothe ta%le odes whi!h holds the vendoadt t7pe also5

SQL- Ceate ta%le odes (odeno nu$%e(1)# vendoinfo ef vendoadt).

O

SQL- Ceate ta%le odes (odeno nu$%e(1)# vendoinfo ef vendoadt with

owid).

) inset the data into odes ta%le

The vendoinfo !olu$n in the following s7nta/es will stoe o%Je!t id of an7 ta%le

whi!h is efeen!ed %7 vendoadt o%Je!t ( %oth vendos and vendos2)5

SQL- inset into odes values(22#(sele!t ef(v) fo$ vendos v whee vendo!ode

H 2)).


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SQL- inset into odes values(21#(sele!t ef(v) fo$ vendos v whee vendo!ode

H 1)).

SQL- inset into odes values(24#(sele!t ef(v2) fo$ vendos2 v2 whee

vendo!ode H 2)).

SQL- inset into odes values(2@#(sele!t ef(v2) fo$ vendos2 v2 whee

vendo!ode H 2)).

) To see the o%Je!t ids of vendo ta%le

SQL- Sele!t ef(9) fo$ vendos v.

V) If 7ou see the vendoinfo of odes it will show onl7 the o%Je!t ids not the values#

to see the values

SQL- Sele!t deef(o5vendoinfo) fo$ odes o.

W) 'ven though the vendos ta%le is o%Je!t ta%le it will not show the adt along with

data# to see the data along with the adt SQL-Sele!t E fo$ vendos.

This will give the data without adt5

SQL-Sele!t value(v) fo$ vendos v.

This will give the !olu$ns data along wih the t7pe5

R'B CONSTRINTS

Ref !an also a!ts as !onstaint5

'ven though vendos2 also holding vendoadt# the odes ta%le will stoe the o%Je!t ids of

vendos onl7 %e!ause it is !onstained to that ta%le onl75

The vendoinfo !olu$n in the following s7nta/es will stoe o%Je!t ids of vendos onl75

SQL- Ceate ta%le odes (odeno nu$%e(1)# vendoinfo ef vendoadt s!ope is

vendos).

OSQL- Ceate ta%le odes (odeno nu$%e(1)# vendoinfo ef vendoadt !onstaint f&

efeen!es vendos).

O>'CT 9I'6S 6IT: R'B'R'NC'S


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Oracle SQL Guide 91

To i$ple$ent the o%Je!ts and the ef !onstaints to the e/isting ta%les# what we !an do[ Si$pl7 dop the

%oth ta%les and e!eate with o%Je!ts and ef !onstains5

ut 7ou !an a!hieve this with out dopping the ta%les and without losing the data %7 !eating o%Je!t

views with efeen!es5

'/0

a) Ceate the following ta%les

SQL- Ceate ta%le student2(no nu$%e(1) pi$a7 &e7#na$e va!ha(1)#$a&s

nu$%e(4)).

SQL- Ceate ta%le student1(no nu$%e(1) pi$a7 &e7#hno nu$%e(4)#!it7

va!ha(23)#id nu$%e(1)#foeign Fe7(id) efeen!es student2(no)). %) Inset the e!ods into %oth ta%les

SQL- inset into student2(2#;a;#233).

SQL- inset into student2(1#;%;#133).

SQL- inset into student1(22#222#;h7d;#2).

SQL- inset into student1(21#111#;%ang;#1).

SQL- inset into student1(24#444#;%o$%a7;#2).

!) Ceate the t7pe

SQL- !eate o epla!e t7pe stud as o%Je!t(no nu$%e(1)#na$e va!ha(1)#$a&snu$%e(4)).?

d) 8eneating OIDs

SQL- Ceate o epla!e view student2ov of stud with o%Je!t identifie(o id) (no) as

Sele!t E fo$ Student2.

e) 8eneating efeen!es

SQL- Ceate o epla!e view student1ov as sele!t no#hno#!it7#

$a&eef(student2ov#id) id fo$ Student1.

d) Que7 the following

SQL- sele!t Efo$ student2ov.

SQL- sele!t ef(s) fo$ student2ov s.

SQL- sele!t values(s) fo$ student2ov.

SQ- sele!t Efo$ student1ov.

SQL- sele!t deef(s5id) fo$ student1ov s.


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Oracle SQL Guide 93

a) Ceating ange patitioned ta%le

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(1)) patition %7 ange(no)

(patition p2 values less than(23)# patition p1 values less than(13)# patition p4

values less than(43)#patition p@ values less than($a/value)).

EE if 7ou ae using $a/value fo the last patition# 7ou !an not add a patition5

%) Inseting e!ods into ange patitioned ta%le

SQL- Inset into student values(2#;a;). "" this will go to p2

SQL- Inset into student values(22#;%;). "" this will go to p1

SQL- Inset into student values(12#;!;). "" this will go to p4

SQL- Inset into student values(42#;d;). "" this will go to p@

!) Retieving e!ods fo$ ange patitioned ta%le SQL- Sele!t Efo$ student.

SQL- Sele!t Efo$ student patition(p2).

d) Aossi%le opeations with ange patitions

dd

Dop

Tun!ate

Rena$e

Split

Move

'/!hange

e) dding a patition

SQL- lte ta%le student add patition p values less than(@3).

f) Dopping a patition

SQL- lte ta%le student dop patition p@.

g) Rena$ing a patition

SQL- lte ta%le student ena$e patition p4 to p.

h) Tun!ate a patition

SQL- lte ta%le student tun!ate patition p.

i) Splitting a patition

SQL- lte ta%le student split patition p1 at(2) into (patition p12#patition p11).


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Oracle SQL Guide 94

J) '/!hanging a patition

SQL- lte ta%le student e/!hange patition p2 with ta%le student1.

&) Moving a patition

SQL- lte ta%le student $ove patition p12 ta%lespa!e sa&ethts.

LIST ARTITIONS

a) Ceating list patitioned ta%le

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(1)) patition %7 list(no)

(patition p2 values(2#1#4#@#)# patition p1 values(#V#W##23)#patition p4

values(22#21#24#2@#2)# patition p@ values(2#2V#2W#2#13)).

%) Inseting e!ods into list patitioned ta%le

SQL- Inset into student values(2#;a;). "" this will go to p2 SQL- Inset into student values(#;%;). "" this will go to p1

SQL- Inset into student values(22#;!;). "" this will go to p4

SQL- Inset into student values(2#;d;). "" this will go to p@

!) Retieving e!ods fo$ list patitioned ta%le

SQL- Sele!t Efo$ student.


d) Aossi%le opeations with list patitions

dd

Dop

Tun!ate

Rena$e

Move

'/!hange

e) dding a patition

SQL- lte ta%le student add patition p values(12#11#14#1@#1).


SQL- lte ta%le student dop patition p@.


SQL- lte ta%le student ena$e patition p4 to p.


SQL- lte ta%le student tun!ate patition p.


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Oracle SQL Guide 95

i) '/!hanging a patition

SQL- lte ta%le student e/!hange patition p2 with ta%le student1.

J) Moving a patition

SQL- lte ta%le student $ove patition p1 ta%lespa!e sa&ethts.

:S: ARTITIONS

a) Ceating hash patitioned ta%le

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(1)) patition %7 hash(no)

patitions .

:ee oa!le auto$ati!all7 gives patition na$es li&e

S*SA2S*SA1

S*SA4

S*SA@

S*SA

%) Inseting e!ods into hash patitioned ta%le

it will inset the e!ods %ased on hash fun!tion !al!ulated %7 ta&ing the patition &e7

SQL- Inset into student values(2#;a;).

SQL- Inset into student values(#;%;). SQL- Inset into student values(22#;!;).

SQL- Inset into student values(2#;d;).

!) Retieving e!ods fo$ hash patitioned ta%le


SQL- Sele!t Efo$ student patition(s7sp2).

d) Aossi%le opeations with hash patitions

dd

Tun!ate

Rena$e

Move

'/!hange

e) dding a patition

SQL- lte ta%le student add patition p .


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Oracle SQL Guide 96

f) Rena$ing a patition

SQL- lte ta%le student ena$e patition p to pV.

g) Tun!ate a patition

SQL- lte ta%le student tun!ate patition pV.

h) '/!hanging a patition

SQL- lte ta%le student e/!hange patition s7sp2 with ta%le student1.

i) Moving a patition

SQL- lte ta%le student $ove patition s7sp1 ta%lespa!e sa&ethts.

SU"ARTITIONS 6IT: RN8' ND :S:

Su%patitions !lause is used %7 hash onl75 6e !an not !eate su%patitions with list and hash patitions5

a) Ceating su%patitioned ta%le

SQL- Ceate ta%le student(no nu$%e(1)#na$e va!ha(1)#$a&s nu$%e(4))

Aatition %7 ange(no) su%patition %7 hash(na$e) su%patitions 4

(Aatition p2 values less than(23)#patition p1 values less than(13)).

This will !eate two patitions p2 and p1 with thee su%patitions fo ea!h patition

A2 \ S*SSUA2

S*SSUA1

S*SSUA4

A1 \ S*SSUA@

S*SSUA

S*SSUA

EE if 7ou ae using $a/value fo the last patition# 7ou !an not add a patition5

%) Inseting e!ods into su%patitioned ta%le

SQL- Inset into student values(2#;a;). "" this will go to p2

SQL- Inset into student values(22#;%;). "" this will go to p1

!) Retieving e!ods fo$ su%patitioned ta%le



SQL- Sele!t Efo$ student su%patition(s7ssu%p2).

d) Aossi%le opeations with su%patitions

dd


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Oracle SQL Guide 97

Dop

Tun!ate

Rena$e

Split

e) dding a patition

SQL- lte ta%le student add patition p4 values less than(43).


SQL- lte ta%le student dop patition p4.


SQL- lte ta%le student ena$e patition p1 to p4.


SQL- lte ta%le student tun!ate patition p2.

i) Splitting a patition

SQL- lte ta%le student split patition p4

28503543 SQL PLSQL Material Ramanjanayalu

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