PRACTICAL FILE - Sri Sukhmanisrisukhmani.edu.in/wp-content/uploads/2014/04/cobol.pdf · PRACTICAL FILE Department: ... List of Practical . ... DBase is a microcomputer database management

PRACTICAL

FILE

Department: Computer Science and Engineering

Session: January - June

Subject: Business System

Subject Code: CS-320

Semester: 6th

SRI SUKHMANI INSTITUTE OF ENGINEERING & TECHNOLOGY

Affiliated to PTU, & Approved by AICTE

1· Laboratory exercises covering usage of COBOL for handling indexed sequential

and relative files.

2. COBOL screen management report management and report writing facilities.

3· Lab Experiments on data management packaged like DBASE, FoxPro.

4. Usage of Word processor.

Syllabus



Sr. No. Topic

1. Laboratory exercises

covering usage of COBOL

for handling indexed

sequential and relative

files.

2. COBOL screen

management report

management and report

writing facilities.

3. Lab Experiments on data

management packaged like

DBASE, FoxPro.

4. Usage of Word processor.

5. *Program to enter name

,DOB,age of a person

6. *Program to enter the marks

of student then calculate

their marks.

*Learning Beyond Syllabus Program to enter name ,DOB,age of a person.

*Learning Beyond Syllabus Program to enter the marks of student then calculate their

marks.

List of Practical



AIM :- Laboratory exercises covering usage of COBOL for handling

indexed sequential and relative files.

PROGRAM:-

1) INDEX FILES:-

IDENTIFICATION DIVISION.

PROGRAM-ID. TESTCOBL.

AUTHOR. TESTTEST.

DATE-WRITTEN. 19-NOV-2010.

DATE-COMPILED.

ENVIRONMENT DIVISION.

INPUT-OUTPUT SECTION.

FILE-CONTROL.

SELECT WS-INFILE ASSIGN TO INFILE

ORGANIZATION IS INDEXED

ACCESS MODE IS RANDOM

RECORD KEY IS INP-EMPID

FILE STATUS IS WS-INFILE-SW.

DATA DIVISION.

FILE SECTION.

FD WS-INFILE.

01 INP-EMP-REC.

Practical - 1

05 INP-EMPID PIC X(05).

05 INP-EMPNAME PIC X(12).

05 INP-EMP-LOB PIC X(03).

WORKING-STORAGE SECTION.

01 WS-INFILE-SW PIC X(02) VALUE SPACES.

88 WS-INFILE-SUCESS VALUE '00'.

88 WS-INFILE-EOF VALUE '10'.

01 WS-INP-EMP-REC PIC X(20).

01 WS-EOF-SW PIC X(01) VALUE 'N'.

88 WS-EOF-NO VALUE 'N'.

88 WS-EOF-YES VALUE 'Y'.

PROCEDURE DIVISION.

A1000-MAIN-PARA.

PERFORM A2000-OPEN-PARA THRU A200-EXIT.

PERFORM A3000-INPUT-PARA THRU A300-EXIT.

PERFORM A4000-INSERT-PARA THRU A400-EXIT.

PERFORM A5000-CLOSE-PARA THRU A500-EXIT.

STOP RUN.

A100-EXIT.

EXIT.

A2000-OPEN-PARA.

INITIALIZE WS-INFILE-SW WS-INP-EMP-REC WS-EOF-SW.

OPEN OUTPUT WS-INFILE.

IF WS-INFILE-SUCESS

DISPLAY "FILE OPEN SUCCESSFUL"

ELSE

DISPLAY "FILE OPENING ERROR"

GO TO A100-EXIT

END-IF.

A200-EXIT.

EXIT.

A3000-INPUT-PARA.

ACCEPT WS-INP-EMP-REC.

DISPLAY WS-INP-EMP-REC.

A300-EXIT.

EXIT.

A4000-INSERT-PARA.

WRITE INP-EMP-REC FROM WS-INP-EMP-REC.

A400-EXIT.

EXIT.

A5000-CLOSE-PARA.

CLOSE WS-INFILE.

A500-EXIT.

EXIT.

2). RELATIVE FILE:-


PROGRAM-ID. TESTCOBL.

AUTHOR. TESTTEST.

DATE-WRITTEN. 19-NOV-2010.

DATE-COMPILED.


INPUT-OUTPUT SECTION.

FILE-CONTROL.

SELECT WS-INFILE ASSIGN TO INFILE

ORGANIZATION IS RELATIVE

ACCESS MODE IS RANDOM

RELATIVE KEY IS RELKEY

FILE STATUS IS WS-INFILE-SW.

DATA DIVISION.

FILE SECTION.

FD WS-INFILE.

01 INP-EMP-REC.

05 INP-EMPID PIC X(05).

05 INP-EMPNAME PIC X(12).

05 INP-EMP-LOB PIC X(03).


01 WS-INFILE-SW PIC X(02) VALUE SPACES.

88 WS-INFILE-SUCESS VALUE '00'.

88 WS-INFILE-EOF VALUE '10'.

01 WS-INP-EMP-REC PIC X(20).

01 RELKEY PIC 9(02).

PROCEDURE DIVISION.

A1000-MAIN-PARA.

PERFORM A2000-OPEN-PARA THRU A200-EXIT.

PERFORM A3000-INPUT-PARA THRU A300-EXIT.

PERFORM A4000-INSERT-PARA THRU A400-EXIT.

PERFORM A5000-CLOSE-PARA THRU A500-EXIT.

STOP RUN.

A100-EXIT.

EXIT.

A2000-OPEN-PARA.

INITIALIZE WS-INFILE-SW WS-INP-EMP-REC.

OPEN OUTPUT WS-INFILE.

IF WS-INFILE-SUCESS

DISPLAY "FILE OPEN SUCCESSFUL"

ELSE

DISPLAY "FILE OPENING ERROR"

GO TO A100-EXIT

END-IF.

A200-EXIT.

EXIT.

A3000-INPUT-PARA.

ACCEPT WS-INP-EMP-REC.

DISPLAY WS-INP-EMP-REC.

A300-EXIT.

EXIT.

A4000-INSERT-PARA.

WRITE INP-EMP-REC FROM WS-INP-EMP-REC.

A400-EXIT.

EXIT.

A5000-CLOSE-PARA.

CLOSE WS-INFILE.

A500-EXIT.

EXIT.



AIM:- COBOL screen management report management and report writing

facilities.

PROGRAM:-


PROGRAM-ID. HORO.


DATA DIVISION.

SCREEN SECTION.

01 CLEAN-SLATE.

05 BLANK SCREEN.

01 MY-SCREEN.

05 LINE 2 COLUMN 10 VALUE " HELLO SSIET " HIGHLIGHT.

05 LINE 5 COLUMN 12 VALUE " HELLO SSIET " BLINK.

05 LINE 8 COLUMN 19 VALUE " HELLO SSIET " REVERSE-VIDEO.

PROCEDURE DIVISION.

MAIN-PARA.

DISPLAY CLEAN-SLATE.

DISPLAY MY-SCREEN.

STOP RUN.

Practical 2



AIM:- Lab Experiments on data management packaged like DBASE, FoxPro.

Definition:-

DBase is a microcomputer database management system (DBMS) that runs on a

Windows platform. DBase is unique in that it allows for the hassle-free production

of a wide variety of applications, including middleware applications, Web apps

hosted on Windows servers and Windows rich client applications.

DBase is designed to manipulate relational databases. It is a versatile third-

generation language with non-procedural capability and is a very good debugger.

Data storage in DBase format is widely accepted and supported by numerous

database management systems. DBase uses procedural functions and commands

similar to the BASIC language. It uses simple commands for data manipulation

like USE and GO TOP to traverse records, STR() and SUBSTR() for string

manipulation, and REPLACE AND STORE for field value manipulation. Other

commands like STORE, DO, APPEND, and MODIFY are also used. The

underlying file format of DBase is .dbf.

DBase has many outstanding features that contribute to its prominence among

database management systems and tools, such as:

A just in time (JIT) compiler, which converts the source language into

machine language

A linker to create DBase applications (.exe files)

A runtime engine installer for Web servers and machines that need to

execute DBase runtime applications

Preprocessors for reading the program source file and producing

preprocessed files as output, which is fed into the compiler

An integrated development environment with a command window and

navigator

Two-way graphical user interface (GUI) design tools, which possess the

ability to switch back and forth between using a GUI design tool and a code

editor

A source code editor, which allows for the manual editing and entry of codes

Practical 3

DBase also has many visual classes and database classes. Visual classes include:

PushButton

Image

Grid

Scroll Bar

ActiveX

Report

ReportViewer

SpinBox

ComboBox

ListBox

Text

TextLabel

Form

SubForm

Notebook

Container

Entry field

RadioButton

Database classes include:

RowSet

Field

StoredProc

Datamodule

Session

Database

Introduction of FoxPro:-

FoxPro is a programming language. FoxPro is 4 GL language is used very

easy & very to learn. It is simple language because number of English word as

code in a FoxPro. FoxPro is used to create database table or database management

system. Father of FoxPro is Ashito Tate. FoxPro is developed in 1979- 1980.

FoxPro is two versions.

Ex: - 1) Database II,

2) Database III developed in 1984.

3) Database III+.

FoxPro is one of the leading DBMS(Database Management System)

software for pc. This is enhanced version of the FoxBASE+ Software

FoxPro is also called RDBMS software.

Extension of FoxPro:-

1) „.txt.‟

2) „.dbf‟

3) „.prg‟

4) „.scr‟

5) „.frx‟

Data types available in FoxPro:-

1. Numeric Numeric datatype is use to store numeric data into a field. We can store 0 to

9 digit, decimal, point and plus or minus sign. A numeric field can hold upto 20

digit wide. A numeric fields can also have a decimal part. The decimal part can

be upto 0 to 18 digit. To store a field like Roll_no, mobile_no, phone_no,

salary, pincode etc numeric field type is used.

2. Float :- Float datatype is similar to numeric. Difference between two is that for

arithmetic calculation numeric datatype is used while float is used for scientific

calculation. It can also hold upto 20 digit wide. We can store 0 to 9 digit,

decimal point and plus or minus sign. To store the fields like Rate, percentage,

average float is commonly used.

3. Character :- Character datatype is use to store string type information. It can store A to

Z , a to z alphabets 0 to 9 digit and underscore with special symbols etc. To

store the fields like name, address, result etc character is used. Character is

default datatype for all the fields. In Character data type we can store upto 254

character. Default size of character is 10 fix.

4. Date :- Date datatype is use to store date in any field. The default format of date is

(mm/dd/yy). The fix length of date is 8.To store the fields like Dob, doj,

ex_date etc date field is used.

5. Logical :- The length of logical field is 1. we can store „T‟ or F‟ or „Y‟ or „N‟ in

logical field. ‟T‟ or „Y‟ for true and „F‟ and „N‟ for False. To store the

information like pass/fail, absent/present etc. logical field type is used.

FoxPro based upon two versions.

1. Windows based FoxPro.

2. Dos Based FoxPro.

Fox Pro Command

1) Create: -

Create command is used to create a new database file in FoxPro. To

create database file structure defining create file to store specific information and

maintain FoxPro defined the structure to store information structure define it also

how many fill file. What is length of data how information will be store?

Syntax: - Create < File Name>.

Ex: - Create Student.

2) Locate: -

Locate is a FoxPro command this is used to find out the record form

file.

Locate searches the information from specified field of database file.

Ex: -Locate for city = “Beed”

FoxPro searches the city Beed it the Beed has found it will display the

contain of search record. Specifies the multiple conditions with command you can

locate record with city Beed & pin code number.

Ex: -Locate for city = “Beed”. and.pin =431122

Locate for Name = “Shubham”

It display the record Shubham in the field name “end of locate scope “.

It could searches the record the contain Shubham in the field.

3) Browse : -

Browse is different edit & change it display the record in horizontal

table each record occupy one record on the table when your database table does not

content many fields. Browse may be more efficient that edit or change the record.

If you want to change the record you more to the position & carry out editing „shift

+ Tab‟ move one field to another field.

Ex: - Use Address.

Browse field city, Pin code.

When you want to new record we can use the „Ctrl + T‟ delete the record

form browse menu. With indicated dot for the delete record.

Browse for city “Pune”

These commands record that content pune.

Browse next file

Display the next 5 Record.

4) Edit or Change: -

Edit is a FoxPro command it provide the change in the

data you change the data modify the data were you have need that some mistake

in data you may to need correct it.

FoxPro display first few records on the first field or first record FoxPro use

75% of Window for edit purpose.

Editing the data field in very simple move the circular then change data by

using delete key, Backspace key, various, editing key that you can use to move the

circular position or delete the character 1) Arrow key, 2) Delete Key, 3) Backspace

key, 4) Escape Key, 5) Ctrl + W, 6) Page up & Page down.

Ex: - Edit field Name, City.

If you wish to edit the particular command edit record 5. This command delete

record the person who us Beed city.

Edit for city = “Beed”

If you wish to edit name & city field of record that have so edit field Name, City =

“Delhi”.

5) Label Command : -

FoxPro provides a very powerful facility of designing and

printing of Mailing address label.

Label Command is used for printing of letters; it is achieved by creating and

using labels format file. These format files contain fields as well as these portion in

the mailing address level, that there file will generate in the label format.

The label that you will design has to be saved in a label format file. FoxPro

is user the extension names. LBX for label format files that it creates.

Syntax: - Create Label < Label File Name >

Ex: - Create Label Student.

6) Replace: -

You have to learn edit, change browse the processing making are

changes in very slow process. You need physically select each record before you

can make change the process become cumber son if you have make changes in

several of the database file know assume that bank of India issues and instruction

the reduce the rate of interest all on deposit by one percentage. It is very difficult

task manually change the rate of interest in all record of database file using edit,

change command.

Ex: - Replace all Rates with Rate- 1.

Replace all Rate with 10 for Rate>10.

Replace depositor with “Krushna”

Replace all name with name = “BCA III”.

Replace city with Beed.

Next 5.

7) Delete : -

Delete the record for your current data base. In case of Student

database file way the student for the leave the college then the record is not require

the record remove deleted from the database is the command it can delete for the

database gives the mark of deletion star „*‟ mark display before the record will not

delete permanently. Record are delete temporary.

Ex: - Delete for rate >10.

Delete for rate >10 next 3.

Delete all for rate =10.

Delete Record 4.

8) Pack: -

Pack command is permanently delete the record form the database file

& release the space occupied by display the record after removing delete record it.

Display the message indicating know present in the database file pack command

given after the delete command delete record not be recall.

Ex: - Pack

9) Append: -

Append command is used to add record at end of database file.

After entering data, if we want to add some records then use append command.

Syntax: - Append Command.

However before you can add record to database with append command the

database file must be in use open. Create new record & save the record in your

current file.

10) Recall:-

Recall command is used to recall the deleted record. The recall

command provides another way of recalling record form the command window.

Syntax: - Recall Record Number

Ex: - Use student

Recall Record 4

Recall for Rate>10

Recall for all for rate+20

11) List: -

List command is used to display content of all record on the screen. It

also displays the field names in the first row & recorded numbers on the left each

record.

Syntax: - List.

List for < Filed Name1, Filed Name2 >.

Ex: -List.

12) Accept: -

Accept command is used to display a specified message on the screen

and it also accepts the data entered through the keyboard in a character variable.

The name of the variable that holds the data is specified with Accept.

Ex: - Accept “Enter the student name” to ABC.

After that FoxPro displays a message “Enter the student name” on the screen

and waits for the user to enter data. You can type any name then press the other

key.

13) Input Command: -

Input command is a modified command form Accept

command. Input command displays the specified message on the screen and stores

the entered detain specifies variable.

Ex: - Input “Enter a number” to NVJ

14) Sort : -

Sort command is used to arrange data in Descending & Ascending or

record in specific manner or order.

Syntax: - Sort on < Filed Name > to < New File Name >

Ex: - Index on Name to Student.

15) Index:-

Index is command is used to arrange data or record in specific manner

or ascending order.

Syntax: - Index on < field Name > to same file name >

Ex: - Use Student

Index on Name to Student.

16) Modi Stru : -

Modi stru stand for modify structure. This command used to

create a new database file.

First open the structure database file. Then enter modify structure command

in command window. The FoxPro displays present structure of structure file.

Syntax: - Modi Stru

Ex: - Modi Stru.

17) Modi Comm: -

Modi comm stand for modify command. Modi comm is used

to create a program file or get the program screen.

Syntax: - Modify Command < File Name >

Ex: - Modi Comm Student.

18) Zap: -

Zap command is used to remove all record form the current or active

database file. Zap removes all record permanently form the database. Zap is similar

to delete all followed by pack command.

Ex: - Zap.

19) Clear Command: -

Clear Command is used to clear the background screen,

EX: - Clear.

20) Go to: -

The command is used to position the record pointer at the specified

record in the database file.

Syntax: - Go to Record Number.

Ex: - Go to Record – 6.

21) Find : -

Find command is used to search or find information with the help of

an index file.

You are use the find command and if FoxPro does not find the information in the

database file, if displays a message “No find”.

Ex: - Use Student.

Set Order to City

After that is screen displays record of “Beed” City.

22) Display: -

This is command is used to display information about the current

table in the main visual FoxPro Window or in the user defined window.

Syntax: - Go to Record Number.

Display

23) Seek: -

The seek Command is used to Find Command. It is also used for the

search purpose i.e. to search for information in an index database field.

The difference between Seek and Find command is that the Seek command

looks for content of a specified variable in the database file, the command Seek

with field name looks for the contents of field name whereas find with filed name

tries to search the word filed name in the database file.

Ex: - Store “Ramesh” To Name 1

Use Student Order Name

Seek Name.

24) Skip Command: -

This is command is used to moves the record pointer

forward or backward. The record specifies the number of record to move the

record pointer.

Syntax: - Skip Record Number.

Ex: - Skip – 6

25) Use Command: -

The Command is used to open an existing database file in

FoxPro.

Syntax: - Use < File Name >

Ex: - Use Student.

26) Delete File: -

Delete File Command is used to remove file form the disk.

Syntax: - Delete < File Name >

Ex: - Delete Student.

27) Copy File: -

The Copy File Command is used to make a copy of database or

any other file. We many need to copy a file to diskette for transferring our friend

following is the syntax of copy file command.

Syntax: - Copy < Old Name > To < New File Name >

Ex: - Copy File Student.DBF. To Student info

28) Report:-

Report generation means the presentation of record in the specific

format. Report file controls the display and printing of data. Report are very useful

any organization, because they can print summary of the transaction with the help

of report generation facility.

We can create are report format. FoxPro report file are created with FRM

extension.

Syntax: - Create Report < Report File Name >

Ex: - Use Student.

Create Report Student.

29) Dir: -

Dir Command stands for directory. The Command is used to displays

information about the directory in FoxPro window.

Syntax: - Dir Command

Ex: - Dir.

30) Do Command: -

Do Command is used to your program is complete then

command window type do your program is run.

Syntax: - Do < File Name >

Ex: - Do student.

31) Close All: -

Close all open databases and index in the current and any active

data work is closed all database file.

Syntax: - Close all command.

Ex: - Close All.

32) Wait Command: -

The Wait Command is used to stop the execution of

program or you wait in the command window it displays a message.

Press any key to continue...

FoxPro wait for key to be pressed use by user press any key, including Enter

key.

Syntax: -

Ex: - Wait “Press enter to any key”.

33) Store Command: -

Store Command is used to create memory variable and

specified value and program.

Syntax: - Store < Field Name > to Memory Variable.

Ex: - Store 10 to Num.

Store “Prashant” To Name.



AIM:- Usage of Word processor.

DEFINITION:-

A word processor is an electronic device or computer software application that, as

directed by the user, performs word processing: the composition, editing,

formatting and sometimes printing of any sort of written material. Word processing

can also refer to advanced shorthand techniques, sometimes used in specialized

contexts with a specially modified typewriter .

HOW TO USE WORD PROCESSOR:-

Word processors are extremely common and easy to use. If you have used a

typewriter to write a letter or any other correspondence, using a word processor is

simple. If you haven't used a typewriter a word processor is easy to learn and you

can use it for many tasks such as writing a letter, doing your homework or

composing your resume, to name a few.

Word processor used to create, edit, and print documents. Of all computer

applications, word processing is the most common. To perform word processing,

you need a computer, a special program called a , Word processor and a printer. A

word processor enables you to create a document, store it electronically on a disk,

display it on a screen, modify it by entering commands and characters from the

keyboard, and print it on a printer.

Word processors vary considerably, but all word processors support the following

basic features:-

o insert text:Allows you to insert text anywhere in the document.

o delete text: Allows you to erase characters, words, lines, or pages as

easily as you can cross them out on paper

o cut and paste:Allows you to remove (cut) a section of text from one

place in a document and insert (paste) it somewhere else.

o copy :Allows you to duplicate a section of text.

Practical 4

http://www.webopedia.com/TERM/C/copy.html

o page size and margins :Allows you to define various page sizes and

margins, and the word processor will automatically readjust the text

so that it fits.

o Search and replace: Allows you to direct the word processor to

search for a particular word or phrase. You can also direct the word

processor to replace one group of characters with another everywhere

that the first group appears.

o Word Wrap:The word processor automatically moves to the next

line when you have filled one line with text, and it will readjust text if

you change the margins.

o Print: Allows you to send a document to a printer to get hardcopy.



AIM:- Program to enter name ,DOB,age of a person.

PROGRAM:-

IDENTIFICATION DIVISION. PROGRAM-ID. ANINDYA. ENVIRONMENT DIVISION. DATA DIVISION. WORKING-STORAGE SECTION. 01 NAME PIC A(7) VALUE SPACES. 01 DAT PIC 99 VALUE 0. 01 MONTH PIC 99 VALUE 0. 01 YEAR PIC 99 VALUE 0. 01 AGE PIC 99 VALUE 0. 01 CurrentDate. 02 CurrentY PIC 99. 02 CurrentM PIC 99. 02 CurrentD PIC 99. PROCEDURE DIVISION. MAIN-PARA. DISPLAY " Enter Name: ". ACCEPT NAME. DISPLAY " Enter date of birth: ". ACCEPT DAT. DISPLAY " Enter month of birth: ". ACCEPT MONTH. DISPLAY " Enter year of birth: ". ACCEPT YEAR. ACCEPT CurrentDate FROM DATE. DISPLAY CurrentY "-" CurrentM "-" CurrentD. COMPUTE AGE = CurrentY - YEAR. DISPLAY NAME. DISPLAY AGE. STOP RUN.

Practical 5



AIM:- Program to enter the marks of student then calculate their marks. PROGRAM:- IDENTIFICATION DIVISION.

PROGRAM-ID. HO.


DATA DIVISION.


01 NAME PIC A(9) VALUE SPACES.

01 RN PIC 9(8) VALUE 0.

01 BRANCH PIC A(9) VALUE SPACES.

01 MARKS1 PIC 9(8) VALUE 0.



01 TOTAL PIC 9(4) VALUE 0.

PROCEDURE DIVISION.

MAIN-PARA.

DISPLAY "ENTER THE NAME ".

ACCEPT NAME.

DISPLAY "ENTER THE ROLL NO ".

ACCEPT RN.

DISPLAY " ENTER THE BRANCH ".

ACCEPT BRANCH.

DISPLAY " ENTER MARKS IN FIRST SUB".

ACCEPT MARKS1.

DISPLAY " ENTER MARKS IN SECOND SUB".

ACCEPT MARKS2.

DISPLAY " ENTER MARKS IN THIRD SUB".

ACCEPT MARKS3.

COMPUTE TOTAL = MARKS1 + MARKS2 + MARKS3 .

DISPLAY TOTAL.

STOP RUN.

Practical 6

PRACTICAL FILE - Sri Sukhmanisrisukhmani.edu.in/wp-content/uploads/2014/04/cobol.pdf · PRACTICAL FILE Department: ... List of Practical . ... DBase is a microcomputer database management

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