How To Fix RS_DB_DB6519 - PSA table &1: Non-unique index does not exist, but is defined in metadata

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_DB_DB6 - DB6-Specific Messages in SAP BW

• Message number: 519

• Message text: PSA table &1: Non-unique index does not exist, but is defined in metadata

What causes this issue?

You have defined a non-unique index for a column-organized PSA table. At
the point in time when the index was created, non-unique indexes were
not supported. The index was therefore not created in the database.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

For more information about how to proceed, see SAP Note 2555566.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_DB_DB6519 - PSA table &1: Non-unique index does not exist, but is defined in metadata ?

  The SAP error message RS_DB_DB6519 indicates that there is an issue with a Persistent Staging Area (PSA) table in the context of data extraction and loading processes. Specifically, the error states that a non-unique index is defined in the metadata for the PSA table, but it does not actually exist in the database.
  Cause:
  
  Metadata Mismatch: The metadata for the PSA table may have been altered or not properly synchronized with the actual database structure. This can happen due to changes in the data model, updates, or inconsistencies during data loading processes.
  Database Issues: There may be issues with the database itself, such as corruption or incomplete updates that prevent the index from being created or recognized.
  Transport Issues: If the table structure was transported from one system to another (e.g., from development to production), the transport might not have included the necessary index definitions.
  
  Solution:
  
  Check Metadata: Verify the metadata for the PSA table in the Data Warehousing Workbench (transaction RSA1) to ensure that it is correctly defined.
  Recreate Index: If the index is missing, you can manually create it in the database. This can typically be done using SQL commands or through the database management tools.
  Repair Table: Use the transaction code RSPSA to repair the PSA table. This transaction can help synchronize the metadata with the actual database structure.
  Check for Transport Issues: If the issue arose after a transport, check the transport logs and ensure that all necessary objects were included and correctly transported.
  Database Consistency Check: Run a consistency check on the database to identify and resolve any underlying issues that may be affecting the PSA table.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSPSA (PSA Repair), and SE11 (Data Dictionary) for checking table definitions.
  SAP Notes: Look for SAP Notes related to this error message for specific patches or updates that may address the issue.
  Database Documentation: Consult the documentation for your specific database (e.g., HANA, Oracle, SQL Server) for commands related to index management and troubleshooting.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.