How To Fix DA426 - Cause: Database lock or inconsistency: Dictionary database

SAP Error Message - Details

• Message type: E = Error

• Message class: DA - Dictionary: Compare, distribution, timer, instantiation

• Message number: 426

• Message text: Cause: Database lock or inconsistency: Dictionary database

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DA426 - Cause: Database lock or inconsistency: Dictionary database ?

  The SAP error message DA426 typically indicates a problem related to database locks or inconsistencies within the dictionary database. This can occur in various scenarios, such as during data updates, table modifications, or when accessing certain database objects.
  Cause:
  
  
  Database Lock: This can happen if a transaction is holding a lock on a database object, preventing other transactions from accessing it. This is common in environments with high concurrency where multiple users or processes are trying to access or modify the same data simultaneously.
  
  
  Inconsistency: This may arise from issues such as incomplete updates, failed transactions, or corruption in the database dictionary. It can also occur if there are discrepancies between the database and the application layer.
  
  
  Solution:
  
  
  Check Locks: Use transaction codes like SM12 to check for existing locks in the system. If you find locks that are no longer needed, you can release them. However, be cautious when doing this, as it may affect other users or processes.
  
  
  Database Consistency Check: Run consistency checks on the database. You can use transaction codes like DB02 or DBACOCKPIT to monitor the database and check for inconsistencies.
  
  
  Repair Inconsistencies: If inconsistencies are found, you may need to perform repairs. This could involve using tools like SE14 (Database Utility) to adjust the database objects or to activate/deactivate database objects.
  
  
  Restart the Application Server: In some cases, restarting the application server can help clear temporary locks or inconsistencies.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve underlying issues.
  
  
  Database Administration: If the problem persists, it may be necessary to involve your database administrator (DBA) to investigate further. They can check for database-level issues, perform backups, and restore if necessary.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (Display and Delete Locks), SE14 (Database Utility), and DB02 (Database Performance Monitor).
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any relevant logs or screenshots.
  Documentation: Review SAP documentation related to database management and error handling for additional insights and best practices.
  
  Always ensure that you have proper backups before making any changes to the database or application settings to prevent data loss.