How To Fix CNV_MBT_09_A111 - Profile parameter dbs/db4/use_hints do not allow SQL hints.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_09_A - Message class for drop-solution

• Message number: 111

• Message text: Profile parameter dbs/db4/use_hints do not allow SQL hints.

What causes this issue?

The profile parameter dbs/db4/use_hints hasn?t got the value 1.
Therefore the database hints for DB400 not used.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_09_A111 - Profile parameter dbs/db4/use_hints do not allow SQL hints. ?

  The SAP error message CNV_MBT_09_A111 indicates that the profile parameter dbs/db4/use_hints is set in a way that does not allow SQL hints to be used during database operations. This can occur during data migration or transformation processes, particularly when using the SAP Data Migration Workbench (DMW) or similar tools.
  Cause:
  The error is caused by the configuration of the database profile parameter dbs/db4/use_hints. This parameter controls whether SQL hints can be utilized by the database optimizer. If it is set to a value that disables the use of hints, certain SQL queries that rely on hints for optimization may fail to execute properly, leading to this error message.
  Solution:
  To resolve this error, you need to change the value of the dbs/db4/use_hints parameter. Here are the steps to do this:
  
  
  Check Current Parameter Value:
  
  You can check the current value of the parameter using transaction code RZ10 in the SAP GUI.
  Look for the profile that is currently active and check the value of dbs/db4/use_hints.
  
  
  
  Change the Parameter Value:
  
  If the parameter is set to 0 (which disables hints), you can change it to 1 (which enables hints).
  You can do this by editing the profile in RZ10 and changing the value of dbs/db4/use_hints to 1.
  
  
  
  Activate the Profile:
  
  After making changes, you need to save the profile and restart the SAP system for the changes to take effect.
  
  
  
  Verify the Change:
  
  After the restart, verify that the parameter is now set to allow hints by checking it again in RZ10.
  
  
  
  Test the Migration Process:
  
  Once the parameter is updated and the system is restarted, try running the migration or transformation process again to see if the error is resolved.
  
  
  
  Related Information:
  
  Profile Parameters: Profile parameters in SAP control various aspects of system behavior and performance. They can be set at the instance level or the system level.
  SQL Hints: SQL hints are directives that can be added to SQL statements to influence the optimizer's choice of execution plan. They can help improve performance in certain scenarios.
  Database Compatibility: Ensure that the database you are using supports SQL hints and that the syntax is compatible with the version of the database.
  
  If you continue to experience issues after making these changes, it may be helpful to consult SAP support or refer to the SAP Notes related to the specific migration or transformation process you are using.