How To Fix D3191 - Indexes that require reorganization

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 191

• Message text: Indexes that require reorganization

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D3191 - Indexes that require reorganization ?

  The SAP error message D3191 indicates that there are indexes in the database that require reorganization. This typically occurs when the database indexes have become fragmented or inefficient due to a high volume of data changes (inserts, updates, deletes) over time. Fragmented indexes can lead to performance issues, as the database engine may take longer to retrieve data.
  Cause:
  
  Data Changes: Frequent changes to the data in the tables can lead to fragmentation of indexes.
  Database Maintenance: Lack of regular database maintenance can result in indexes becoming outdated or inefficient.
  High Volume of Transactions: A high volume of transactions can exacerbate the fragmentation issue.
  
  Solution:
  To resolve the D3191 error, you need to reorganize the affected indexes. Here are the steps to do this:
  
  
  Identify Affected Indexes:
  
  Use transaction code DB02 or DBACOCKPIT to analyze the database and identify which indexes are fragmented.
  
  
  
  Reorganize Indexes:
  
  You can reorganize indexes using the following methods:
  
  Using SAP Transaction: 
  
  Go to transaction SE14 (Database Utility).
  Select the relevant table and choose the option to "Reorganize".
  
  
  Using SQL Commands: If you have access to the database directly, you can use SQL commands to rebuild or reorganize the indexes. The specific command will depend on the database system (e.g., ALTER INDEX ... REBUILD for Oracle, REINDEX for PostgreSQL, etc.).
  
  
  
  
  
  Schedule Regular Maintenance:
  
  Implement a regular maintenance schedule to reorganize indexes periodically to prevent fragmentation from becoming an issue in the future.
  
  
  
  Monitor Performance:
  
  After reorganizing the indexes, monitor the performance of the database to ensure that the changes have had a positive effect.
  
  
  
  Related Information:
  
  Database Documentation: Refer to the documentation for your specific database system (e.g., Oracle, SQL Server, HANA) for detailed instructions on index maintenance.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to index management and performance tuning.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools to keep track of database performance and identify potential issues early.
  
  By following these steps, you should be able to resolve the D3191 error and improve the performance of your SAP system.