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Cognos User Group Framework Manager and Transformer Tips August 6, 2010.

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Presentation on theme: "Cognos User Group Framework Manager and Transformer Tips August 6, 2010."— Presentation transcript:

1 Cognos User Group Framework Manager and Transformer Tips August 6, 2010

2 Topics Framework Manager –Using filters –Governors –Diagram settings –As View query subjects vs. Minimized Transformer –Using categories for counts –Creating Bucket Dimensions –Time dimensions –When to use a DMR model (in Framework Manager)

3 FM - Filters Filter Options Embedded (within query subject) –Required –Optional –Design Mode Stand-alone –Only way to make hard-coded filter optional –Use screen tip so that you know what the filter is ! Studios

4 FM – Governors Use to improve performance by reducing system requirements Big 5 Infolink has found useful: –Max Rows Retrieved –Query time limit –Large Text (BLOBS) limit –Cross-Product joins –Usage of local cache

5 FM – Diagram Settings Context Explorer vs. Diagram tab –Use Navigate Diagram to control defaults Shrink to fit Layout control Settings control

6 FM – As View query subject Default is Minimized How does As View work? –Creates in-line view –Controls order of query processing Why use As View –Accuracy –Merged query subject outer join example

7 Transformer – Category Counts 3 types of measures in Transformer –Column –Calculated –Category Count Category Count type measure is used to provide a distinct count of members among dimension levels of a level you specify in the Dimension Map. (note 65,536 limit)

8 Trans – Category Counts continued You can create a category count using multiple columns from a data source. Example: Unique employee is determined by Employee ID + Employee Record. We want to count this within our dimension levels

9 Trans – Bucket Dimensions Bucket Dimensions are useful when you want to categorize measures (like employee count) into pre-determined buckets that you define within Transformer. In our example, we create our buckets using calculated columns in the data source. (Note: you can do this in FM as well)

10 Trans – Time Dimension Standard Time Dimension –Cognos automatically builds dimension levels from a date using a wizard. –Relative time –Adding additional drill path Custom Time Dimension –Is a regular (non-time) dimension –Create your own time categories and sorting

11 FM - DMR Dimensionally Modeled Relational Data (DMR) –Provides OLAP Cube style reporting –Useful for real time reporting on small data sets that have a good framework model –Drawbacks: Performance (typically slower than PowerCubes which are pre-aggregated) Consumes database server resources with report queries

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