1 DN 9601 000.0098 Copyright © 1998 Information Builders, Inc. Fusion: Migrating from Focus Tim Feetham NORCAL FUSE June 11, 1999.

DN 9601 000.0098Copyright © 1998 Information Builders, Inc.

Fusion:Migrating from Focus

Tim Feetham

NORCAL FUSE June 11, 1999

DN 9601 000.0098

Copyright © 1998 Information Builders, Inc.

Fusion: What is it?

Focus vs Fusion

Migration strategies

Design options

Tools and techniques

Agenda

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FusionWhat is it?

Fusion is a server based DSS DBMS

Close relative to Focus

Greater scalability

More design options

Faster performance

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FusionWhat is it?

Designed for data marts & warehouses

Integrated with Web Focus & Focus Desktop

Supports SQL/ODBC tools

Currently scales to 500 gig

Soon to be available for Focus

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FusionWhy?

DSS DBMS performance hierarchy

sequential access

pointers

indexes

Fusion uses all three methods

Pointers & RDBMS’s don’t mix

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FusionWhy?

DSS no single architecture

pre calculation approach does not scale and is rarely open (SQL support wanting)

dynamic does not perform as well

Fusion scales, supports SQL, and is best of dynamic DSS

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Fusionvs. Focus

Like Focus, Fusion uses native file system --

uses system move & copy

uses standard backups

deployment flexibility, i.e.

same file different names

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Fusionvs. Focus

Uses master file with some differences

Key word delimited except for Defines and DBA (same syntax)

Segments now called classes

Use of Use for history now handled through partitions

DKU, KU, etc now

JOIN, RJOIN, etc

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Fusion vs FocusFocus Master

FILE=CUSTORD, SUFFIX=FOC,

SEGNAME=ORDER, SEGTYPE=S1 $FIELD=ORDER_NO, ALIAS=ORDER, FORMAT=A6, INDEX=I $

SEGNAME=ORD_DATA, SEGTYPE=U, PARENT=ORDER, $FIELD=ITEM_NO, ALIAS=ORDER_LINE, FORMAT=P4, $

SEGNAME= ITEM_SEG, SEGTYPE=S1, PARENT=ORDER, $FIELD=PART_NO, ALIAS=PART_ID, FORMAT=A4$

DEFINE SUPPLIER/A2=EDIT(PART_NO,99$$);

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Fusion vs FocusFusion Master

FILE CUSTORD FILETYPE FUSION ACCESS CUSTORD

CLASS ORDER KEY S1FIELD ORDER_NO ALIAS ORDER FORMAT A6 INDEX ON

SECTION ORD_DATAFIELD ITEM_NO ALIAS ORDER_LINE FORMAT P4

CLASS ITEM_SEG PART_OF ORDER KEY S1FIELD PART_NO ALIAS PART_ID FORMAT A4

DEFINE SUPPLIER/A2 = EDIT(PART_NO,99$$);

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Fusion vs FocusFusion Access File

MASTERNAME CUSTORD DATANAME C:\DATA\CSTORD.FUS

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Fusion vs FocusFusion Options of Special Note

Intelligent Partitions

Multi-dimensional Indexes

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Fusion vs FocusFusion Access File w/ Intelligent Partitions

MASTERNAME CUSTORD

DATANAME C:\DATA\CSTORD97.FUS WHERE ORDDT GE ‘1997/01/01’ AND ORDDT LE ‘1997/12/31’; DATANAME C:\DATA\CSTORD98.FUS WHERE ORDDT GE ‘1998/01/01’ AND ORDDT LE ‘1998/12/31’;

DATANAME C:\DATA\CSTORD99.FUS WHERE ORDDT GE ‘1999/01/01’ AND ORDDT LE ‘1999/12/31’;

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Fusion vs FocusMaster&Access w/ Multi-dimensional Index

MASTERNAME CUSTORD DATANAME C:\DATA\CSTORD.FUS MDILOCATION ORDMD DATANAME C:\DATA\CSTMDI.MDI

FILE CUSTORD FILETYPE FUSION ACCESS CUSTORD

CLASS ORDER KEY S1

FIELD ORDER_NO ALIAS ORDER FORMAT A6 INDEX MD_EXTERNAL LOCATION ORDMD

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Focus to FusionMigration Strategies

Forklift with minimal change

Move databases and programs intact

replace USE routines with partitions

move to c/s and/or web

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Focus to FusionMigration Strategies

Re-engineer for data mart/warehouse

deploy star schema

add admin tools

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Focus to FusionForklift

Create extract files from focus

ON TABLE HOLD AS a FORMAT ALPHA

one file per path, max (hint: use SEG.fieldname syntax to save typing)

Move original master, hold file, and hold file to target

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Focus to FusionForklift

Convert original master (use REBUILD MIGRATE or Fusion Admin)

Write Modify and load (use EDA Worksheet or Focus Desktop)

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Focus to FusionForklift - sample MODIFY

CREATE FILE CUSTORD

MODIFY FILE CUSTORDFIXFORM FROM CUSTEXTMATCH ORDER_NO ON NOMATCH INCLUDE ON MATCH CONTINUEMATCH LINE_ITEM ON NOMATCH INCLUDE ON MATCH …

DATA ON CUSTEXTEND

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Focus to FusionData Mart/ Warehouse

Star Schema design dominates thinking (see Kimball, et al Data Warehouse Life Cycle Toolkit)

Fusion can support star and snowflake schema with superior performance to relational DBMS’s

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Focus to FusionClassic Star Schema

Order

Order_no

Sales_rep_id

Dealer

Promotion

LineItem

Order_ no

Part_id

Customer_id

Order_dt

quantity

unit_pricePart

Part_id

Part_description

Assembly_id

Assembly_description

Customer

Customer_id

Customer_fname

Customer_lname

Customer_phone

Time

date

month

cal_yr

fisc_yr

1,10,N

1,10,N

1,10,N

1,10,N

Most queries require one or more joins w/ relational technology.

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Most joins are resolved prior to query--others via Multi-dimensional index.

Focus to FusionStar Schema w/ some Fusion options

Def_MF.Customer

Customer_id

Customer_fname

Customer_lname

Customer_phone

Def_MF.Part

Part_id

Part_description

Assembly_idDef_MF.LineItem

Order_ no

Part_id

Order_dt

quantity

unit_price

month

cal_yr

fisc_yr

Def_MF.Order

Order_no

Sales_rep_id

Dealer

Promotion

Customer_id

Def_MF.Assembly

Assembly_id


RJOIN_TO PART_OFPART_OF

RJOIN_TO

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Focus to FusionStar SchemaFusion user view

Def_MF.LineItem

Order_ no

Customer_id

Customer_fname

Customer_lname

Customer_phone

Part_id

Part_description

Assembly_id


Sales_rep_id

Dealer

Promotion

Order_dt

quantity

unit_price

month

cal_yr

fisc_yr

User views simplified.

Storage minimized.

Performance maximized.

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Fusion Management Tools

Construction of Masters and Access Files Via text editor SmartModeler Fusion Administrator

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Fusion Management Tools

Maintenance (loads) via Modify Copy Manager

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Demo

1 DN 9601 000.0098 Copyright © 1998 Information Builders, Inc. Fusion: Migrating from Focus Tim Feetham NORCAL FUSE June 11, 1999.

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