How To Fix DI790 - No lock mode was defined for base table &

SAP Error Message - Details

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 790

• Message text: No lock mode was defined for base table &

What causes this issue?

Base tables belong to the lock object for which no
<DS:TX.DDDOK_ENQU_MODE>lock mode</> is defined.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you really do not wish to lock these base tables with the lock
object, check whether you can remove them from the lock object.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI790 - No lock mode was defined for base table & ?

  The SAP error message DI790 "No lock mode was defined for base table &" typically occurs in the context of database operations where a lock mode is required but not specified for a particular base table. This can happen during data manipulation operations such as inserts, updates, or deletes when the system expects a locking mechanism to ensure data integrity and consistency.
  Cause:
  
  Missing Lock Mode Definition: The error indicates that the system is trying to perform an operation on a base table that requires a lock mode, but none has been defined.
  Configuration Issues: There may be a configuration issue in the database or the application layer where the lock mode settings are not properly defined.
  Custom Code: If there is custom ABAP code or enhancements that interact with the database, it may not be specifying the required lock mode.
  
  Solution:
  
  Define Lock Mode: Ensure that the lock mode is defined for the base table in question. This can typically be done in the database or application configuration settings.
  Check Custom Code: If the error arises from custom ABAP code, review the code to ensure that it specifies the appropriate lock mode when performing database operations. Use the ENQUEUE and DEQUEUE function modules to manage locks properly.
  Review Table Settings: Check the settings of the base table in the Data Dictionary (SE11) to ensure that it is configured correctly for locking.
  Consult Documentation: Refer to SAP documentation or notes related to the specific base table and its locking requirements.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves standard SAP functionality.
  
  Related Information:
  
  Lock Modes: In SAP, common lock modes include shared locks (S), exclusive locks (X), and write locks (W). Understanding these modes can help in defining the correct lock for your operations.
  Transaction Management: Familiarize yourself with transaction management in SAP, as it plays a crucial role in how locks are handled during database operations.
  Performance Considerations: Be aware that improper locking can lead to performance issues, such as deadlocks or long wait times for resources.
  
  By addressing the above points, you should be able to resolve the DI790 error and ensure that the necessary lock modes are defined for your base tables.