Information Design Tool -Tutorial2

Information Design Tool (**Universe

Design Tool)

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Creating a Universe using IDT

**Here the data is stored in a MS Access DB and connection to the DB is made

using ODBC**

Our intension is to design/develop a Universe, which can be used by the webI

users to create reports as per the requirements. The process is as follows;

1: Creating a project

2: Creating Database Connections

3: Creating Data Foundation layer

4: Insert Tables and Joins to DFX layer

5: Creating Business Layer

6: Creating Folders/Classes and Objects (Dimension, Detail, Measure) in BLX layer

7: Creating Queries to Test

8: Publish to repository

Tutorial 2

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SAP Business Objects 4.0 SP02

Data Foundation Layer

Select your project (Right Click) -> New -> Data Foundation Layer


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Now you need to select your DF type, one could either use single data source or

multiple sources.

**If you are trying to create a universe layer over BW system, then IDT will dig

into the Infocube and not to the BEx query. **


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Connection Name

Data Source

Tables

Detect primary Keys in

tables

Joins and Cardinality are

automatically selected

A DF layer has following sub tabs

� Connection

� Data Foundation

� Aliases and Contexts

� Parameters and List of Values

� Properties

For adding tables go to Master -> Insert (‘+’) -> insert Tables


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We need to use joins to combine data from multiple tables in a meaningful way

(with respect to business logic). A join is a condition that links the data in separate

but related tables. There are different types of joins;

� Equi Join or Inner Join

Table1.column_a = Table2.column_a

eg: SELECT COUNTRY.COUNTRY_NAME, REGION.REGION_NAME FROM COUNTRY, REGION

WHERE (COUNTRY.COUNTRY_ID = REGION.COUNTRY_ID)

� Outer Join

Links two tables, where rows in one table may not match the common

column of the second table.

eg: SELECT COUNTRY.COUNTRY_NAME, REGION.REGION_NAME FROM COUNTRY, REGION

{oj COUNTRY LEFT OUTER JOIN REGION ON COUNTRY.COUNTRY_ID = REGION.COUNTRY_ID}

� Theta Join

The join links tables based on a relationship other than equality between

two columns

eg: SELECT MODEL.MODEL_NAME, PRICE_RANGE.PRICE_RANGE FROM MODEL, PRICE_RANGE

WHERE (MODEL.MODEL_PRICE BETWEEN PRICE_RANGE.PRICE_MIN AND PRICE_RANGE.PRICE_MAX)

� Recursive Join

Linking row value in a column with another row value from different

column in the same table


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eg: For a table showing employee information, an employee with an employee id will have a manager

with a manager id, where the manager_id can be cross linked to an employee id of the same table

� Self-Restricting Join

This is a Universal condition rather than a join and should always be applied

against a table

eg: SELECT SALES.SALES_DATE, SALES.SALES_TOTAL, SALES.SALES_TYPE FROM SALE

WHERE (SALES.SALES_TYPE = ‘S’)

� Short Cut Join

Provides a shortcut or alternative path between tables

From Master -> Insert -> Join


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Technology

Information Design Tool -Tutorial2