Table of Contents

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  1. Preface
  2. Analyst Service
  3. Content Management Service
  4. Data Integration Service
  5. Data Integration Service Architecture
  6. Data Integration Service Management
  7. Data Integration Service Grid
  8. Data Integration Service Applications
  9. Metadata Manager Service
  10. Model Repository Service
  11. PowerCenter Integration Service
  12. PowerCenter Integration Service Architecture
  13. High Availability for the PowerCenter Integration Service
  14. PowerCenter Repository Service
  15. PowerCenter Repository Management
  16. PowerExchange Listener Service
  17. PowerExchange Logger Service
  18. SAP BW Service
  19. Search Service
  20. System Services
  21. Test Data Manager Service
  22. Web Services Hub
  23. Application Service Upgrade
  24. Application Service Databases
  25. Connecting to Databases from Windows
  26. Connecting to Databases from UNIX
  27. Updating the DynamicSections Parameter of a DB2 Database

Orphaned Reference Data

Orphaned Reference Data

When you delete a reference table object from the Model repository, the table data remains in the reference data warehouse.
Use the
Purge Orphaned Tables
option on the Content Management Service to delete unused reference tables. The option identifies the tables that store data for reference table objects in the Model repository and deletes all other reference tables from the warehouse. The purge option removes obsolete reference tables and creates additional space in the warehouse.
Before you purge the unused tables, verify the following prerequisites:
  • You have the Manage Service privilege on the domain.
  • The user name that the Content Management Service uses to communicate with the Model repository has the Administrator role on the associated Model Repository Service.
  • All Data Integration Services associated with the Model repository are available.
  • There are no data operations in progress on the reference data warehouse.
  • The reference data warehouse stores data for the reference table objects in a single Model repository.
  • You updated the search index that the Model Repository Service uses to identify the objects in the Model repository. Update the index to verify that the Model Repository Service uses the current list of reference table objects. For more information about search index updates, see Manually Updating Search Index Files.
The purge operation reads the Model repository that the current Content Management Service identifies, and it deletes any reference table that the Model repository does not use. If the reference data warehouse stores reference data for any other Model repository, the purge operation deletes all tables that belong to the other repository.
To prevent accidental data loss, the purge operation does not delete tables if the Model repository does not contain a reference table object.