Use Alternate Data Sources For Cube Creation; Build A Subset Of Your Cube Data For Testing Purposes - IBM Cognos User Manual

2. Click Add, type the name of your temporary file in the File name box, and
3. Select your temporary file from the Custom Reports list, and click it once to
4. Type the path to the UNIX/Linux server, and press the Enter key on your

Use Alternate Data Sources for Cube Creation

One way to customize cubes for individual audiences is to change the source data.
You can create two different cubes based on the same model, but alter the content
by using different source files.
The structure of the alternate source file must exactly match the structure of the
source file on which the original model is based. The alternate file must have the
same columns as the original for it to be read into the model. Also, the alternate
data source must contain measure values. Purely structural alternate data sources
will be ignored during a cube build.
For example, suppose you decide to build cubes for different sales divisions from
different source files. In all cases, you can use the same sales analysis model. You
use your database access component (such as Framework Manager or IBM Cognos
Impromptu) to set up several alternate source files. Each file contains measure
values, each is structurally identical to the source file on which the model is based,
and each filters the data to retrieve values for only one sales division.
Procedure
1. Open the property sheet for the PowerCube that will use the alternate source
2. In the Data source list box, select the appropriate item in the alternate source
3. In the Source file box, type or browse for the name of the alternate source file,

Build a Subset of Your Cube Data for Testing Purposes

You can generate categories and create a cube that uses a subset of your source
data, to obtain a smaller, more quickly built cube for testing purposes.
For example, suppose your model uses the following database sources:
v Customers (9,400 structural records)
v Products (1,720 structural records)
v Daily Sales (350,000 transactional records)
To create a quick test build, include only the first 350 records from each data
source.
Note: When the number of test rows in the data source is limited to slightly more
or fewer than 15 rows, Cognos Transformer generates extra categories in the
model. The extra categories are labeled with numbers instead of proper category
labels. This problem exists only when running test builds; when the complete cube
is built, Cognos Transformer correctly processes all the rows from all the queries.
click Open to add it to the Custom reports list.
edit the filename.
keyboard.
file and click the General tab.
file.
and click OK.
Chapter 6. Creating PowerCubes
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