When you request row counts, the Oracle Administration Tool retrieves the number of rows from the data source for all, or selected tables and columns (distinct values are retrieved for columns), and stores those values in the repository.
The amount of time required to count the number of rows depends upon the number of row counts retrieved.
When updating all row counts, the Updating Row Counts window appears while row counts are retrieved and stored. If you click Cancel, the retrieve process stops after the in-process table (and its columns) have been retrieved. Row counts include all tables and columns for which values were retrieved before the cancel operation.
Updating all row counts for a large repository might take a long time to complete. You might want to update only selected table and column counts.
Row counts are not available for the following:
Stored Procedure object types
XML data sources and XML Server data sources
Multidimensional data sources
Data sources that do not support the
COUNTDISTINCT function, such as Microsoft Access and Microsoft Excel, or data sources for which
COUNT_STAR_SUPPORTED has been disabled in the database features table
In online mode, Update Row Count does not work with connection pools in which the session variables
:PASSWORD are set as the user name and password.
In offline mode, the Set values for variables dialog appears so that you can populate the session variables :
In online mode, after importing or manually creating a physical table or column, the Oracle BI Server does not recognize the new objects until you check them in. Therefore, Update Row Count is not available in the menu until you check in these objects.
If the repository is open in online mode, and the Check Out Objects window opens, click Yes to check out the objects
Any row counts that have changed since the last update are refreshed.