How To Fix /SAPAPO/OM_UPGRADE161 - Database statistics for table &1 were not refreshed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_UPGRADE -

• Message number: 161

• Message text: Database statistics for table &1 were not refreshed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_UPGRADE161 - Database statistics for table &1 were not refreshed ?

  The SAP error message /SAPAPO/OM_UPGRADE161 indicates that the database statistics for a specific table (denoted by &1) in the SAP Advanced Planning and Optimization (APO) system have not been refreshed. This can lead to performance issues, as the database optimizer relies on accurate statistics to determine the most efficient way to execute queries.
  Cause:
  The error typically arises during system upgrades or after significant changes to the database schema or data volume. The database statistics may not have been updated automatically, which can happen for various reasons, including:
  
  Upgrade Process: During an upgrade, certain steps may not have been executed correctly, leading to outdated statistics.
  Manual Changes: If there were manual changes to the database or the APO configuration, the statistics may not have been refreshed.
  Database Maintenance: Regular maintenance tasks that include updating statistics may not have been performed.
  
  Solution:
  To resolve this issue, you need to refresh the database statistics for the affected table. Here are the steps you can take:
  
  
  Identify the Table: Check the error message for the specific table name that is indicated by &1.
  
  
  Use Database Tools: Depending on your database system (e.g., Oracle, SQL Server, HANA), you can use the respective tools or commands to refresh the statistics. Here are some examples:
  
  For Oracle: You can use the DBMS_STATS package to gather statistics.
  EXEC DBMS_STATS.GATHER_TABLE_STATS('schema_name', 'table_name');
  
  For SQL Server: You can use the following command:
  UPDATE STATISTICS schema_name.table_name;
  
  For SAP HANA: You can use:
  ANALYZE TABLE schema_name.table_name;
  
  
  
  
  SAP Transaction Codes: You can also use SAP transaction codes to refresh statistics:
  
  Transaction DB02: This transaction allows you to analyze and manage database performance, including refreshing statistics.
  Transaction ST03N: This transaction can help you monitor performance and may provide insights into which tables need attention.
  
  
  
  Schedule Regular Maintenance: Ensure that regular maintenance tasks are scheduled to keep the database statistics up to date. This can include automated jobs that gather statistics periodically.
  
  
  Check SAP Notes: Look for any relevant SAP Notes that may provide additional guidance or specific instructions related to your version of SAP APO.
  
  
  Related Information:
  
  Database Performance: Keeping database statistics up to date is crucial for optimal performance. Outdated statistics can lead to inefficient query plans and slow performance.
  Monitoring Tools: Utilize SAP's monitoring tools to keep track of database performance and identify any other potential issues.
  Documentation: Refer to the official SAP documentation for your specific version of APO and the database you are using for detailed instructions on managing database statistics.
  
  By following these steps, you should be able to resolve the error and ensure that your database statistics are current, leading to improved performance in your SAP APO system.