How To Fix DB02129 - &1 > &2: number of extents > threshold.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 129

• Message text: &1 > &2: number of extents > threshold.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB02129 - &1 > &2: number of extents > threshold. ?

  The SAP error message DB02129 indicates that the number of extents for a database object (such as a table or index) has exceeded a predefined threshold. This can lead to performance issues, as having too many extents can slow down data access and increase fragmentation.
  Cause:
  
  High Fragmentation: The object has been modified frequently (inserted, updated, or deleted), leading to fragmentation and an increase in the number of extents.
  Insufficient Space Management: The database may not be configured to manage space efficiently, leading to excessive extent allocation.
  Improper Table Design: The design of the table or index may not be optimal, causing it to require more extents than necessary.
  
  Solution:
  
  
  Reorganize the Table/Index: You can reorganize the table or index to reduce fragmentation and the number of extents. This can be done using the following methods:
  
  DBCC SHRINKFILE: This command can be used to shrink the size of the database file and reclaim unused space.
  ALTER TABLE ... REBUILD: This command can be used to rebuild the table or index, which can help reduce the number of extents.
  SAP Transaction DB02: Use this transaction to analyze and manage database objects.
  
  
  
  Increase the Threshold: If the current threshold is too low for your application, consider increasing it. This can be done by adjusting the database parameters.
  
  
  Review and Optimize Table Design: Analyze the table structure and consider normalization or partitioning strategies to reduce the number of extents.
  
  
  Monitor Database Growth: Regularly monitor the growth of database objects and take proactive measures to manage space effectively.
  
  
  Related Information:
  
  Database Administration: Regular maintenance tasks such as updating statistics, rebuilding indexes, and monitoring performance can help prevent this issue.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message.
  Database Documentation: Refer to the documentation for your specific database (e.g., Oracle, SQL Server, HANA) for best practices on managing extents and fragmentation.
  
  Conclusion:
  Addressing the DB02129 error involves a combination of reorganizing the affected database objects, optimizing the design, and possibly adjusting configuration settings. Regular monitoring and maintenance are key to preventing this issue from recurring.