How To Fix DB02124 - sort_area_size. Size (KB) of the sort area in the PGA.

SAP Error Message - Details

• Message type: E = Error

• Message class: DB02 - For Oracle Component of the Database Monitor

• Message number: 124

• Message text: sort_area_size. Size (KB) of the sort area in the PGA.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB02124 - sort_area_size. Size (KB) of the sort area in the PGA. ?

  The SAP error message DB02124 related to sort_area_size typically indicates that the size of the sort area in the Program Global Area (PGA) is insufficient for the operations being performed. This can occur during SQL operations that require sorting, such as ORDER BY clauses, GROUP BY clauses, or when creating indexes.
  Cause:
  
  Insufficient Sort Area Size: The sort area size is too small to handle the data being processed, leading to performance issues or failures in executing queries.
  High Data Volume: Large datasets being processed may require more memory for sorting than what is currently allocated.
  Database Configuration: The database parameters related to memory allocation may not be optimally configured for the workload.
  
  Solution:
  
  
  Increase Sort Area Size:
  
  For Oracle databases, you can increase the sort_area_size parameter. This can be done by executing the following SQL command:
  ALTER SYSTEM SET sort_area_size = <new_size_in_kb> SCOPE=BOTH;
  
  For other databases, you may need to adjust similar parameters (e.g., work_mem in PostgreSQL).
  
  
  
  Optimize Queries:
  
  Review and optimize SQL queries to reduce the need for sorting. This can include using indexes, avoiding unnecessary sorting, or breaking down complex queries.
  
  
  
  Monitor and Analyze:
  
  Use database monitoring tools to analyze memory usage and identify queries that are consuming excessive resources. This can help in tuning the database configuration.
  
  
  
  Database Configuration:
  
  Ensure that the overall memory settings for the database are adequate. This includes checking the PGA and SGA sizes (for Oracle) or equivalent memory settings for other databases.
  
  
  
  Consult Documentation:
  
  Refer to the specific database documentation for guidance on memory management and configuration settings.
  
  
  
  Related Information:
  
  PGA (Program Global Area): This is a memory region that contains data and control information for a server process. It is allocated when a user connects to the database.
  Sort Area: This is a portion of the PGA that is used for sorting operations. If the sort area is too small, the database may need to use temporary disk space, which can significantly slow down performance.
  Performance Tuning: Regular performance tuning and monitoring can help prevent such issues from arising in the future.
  
  Conclusion:
  To resolve the DB02124 error, you should focus on increasing the sort area size, optimizing your SQL queries, and ensuring that your database configuration is appropriate for your workload. Regular monitoring and adjustments can help maintain optimal performance.