Cube Building and Modifying Examples

Set IGNORE_MISSING_DIMKEYS for a Star Schema

If you are building a cube with a star schema data source, you can define how the cube build process will respond to missing dimension keys. A missing dimension key is detected when the star schema fact table contains foreign key values that are not present in one of the corresponding dimension tables. You can set the option in SAS OLAP Cube Studio when you are creating or editing a star schema cube. On the Cube Designer - General page, select Advanced.

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This opens the Advanced Cube Options dialog box. Select the Star Schema Options tab. You can now select one of the options for handling a missing dimension key if it is encountered.

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Here are the options:

Print error and stop processing	Any missing dimension keys stop the build of the cube. This is the default option.
Print summary of missing keys and continue processing	The cube build continues and the fact table row with the missing key is ignored (it is not built into the cube).
Print details about missing keys and continue processing	The cube build continues and the fact table row with the missing key is ignored. In addition, the log receives additional detail and the missing keys are listed for each dimension table.

You can also set the missing key option when you are updating a cube. See the example Generating a New Cube. If you are defining a cube in PROC OLAP you can set the IGNORE_MISSING_DIMKEYS option on the PROC OLAP statement.

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