Table of Contents

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  1. Preface
  2. Analyst Service
  3. Catalog Service
  4. Content Management Service
  5. Data Integration Service
  6. Data Integration Service Architecture
  7. Data Integration Service Management
  8. Data Integration Service Grid
  9. Data Integration Service REST API
  10. Data Integration Service Applications
  11. Data Privacy Management Service
  12. Enterprise Data Preparation Service
  13. Interactive Data Preparation Service
  14. Informatica Cluster Service
  15. Mass Ingestion Service
  16. Metadata Access Service
  17. Metadata Manager Service
  18. Model Repository Service
  19. PowerCenter Integration Service
  20. PowerCenter Integration Service Architecture
  21. High Availability for the PowerCenter Integration Service
  22. PowerCenter Repository Service
  23. PowerCenter Repository Management
  24. PowerExchange Listener Service
  25. PowerExchange Logger Service
  26. SAP BW Service
  27. Search Service
  28. System Services
  29. Test Data Manager Service
  30. Test Data Warehouse Service
  31. Web Services Hub
  32. Application Service Upgrade
  33. Appendix A: Application Service Databases
  34. Appendix B: Connecting to Databases from Windows
  35. Appendix C: Connecting to Databases from UNIX or Linux
  36. Appendix D: 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.
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.