How To Fix R7691 - Secondary index for table &1 has been deleted; not required for high card

R7691 - Overview

• Message type: E = Error

• Message class: R7 - BW: Data basis

• Message number: 691

• Message text: Secondary index for table &1 has been deleted; not required for high card

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message R7691 - Secondary index for table &1 has been deleted; not required for high card ?

  The SAP error message R7691 indicates that a secondary index for a database table has been deleted because it is not required for high cardinality. This typically occurs when the database optimizer determines that the secondary index is not beneficial for performance due to the nature of the data in the table.
  
  Cause:
  
  High Cardinality: The table in question has a high cardinality, meaning that the number of distinct values in the indexed column(s) is very high. In such cases, the database optimizer may decide that maintaining a secondary index is not necessary or beneficial for query performance.
  Index Usage: The secondary index may not have been used frequently enough to justify its existence, leading to its deletion.
  Database Optimization: The database system may automatically manage indexes based on usage patterns and performance metrics, leading to the removal of indexes that are deemed unnecessary.
  
  
  Solution:
  
  Review Index Usage: Check the usage statistics of the secondary index