How To Fix DB02120 - optimizer_mode. Controls optimizer behavior. Default: <>Choose.

DB02120 - Overview

• Message type: E = Error

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

• Message number: 120

• Message text: optimizer_mode. Controls optimizer behavior. Default: <>Choose.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB02120 - optimizer_mode. Controls optimizer behavior. Default: <>Choose. ?

  The SAP error message DB02120 relates to the database optimizer mode setting, which controls how the database optimizer behaves when executing SQL queries. This error typically indicates that there is an issue with the configuration of the optimizer mode in the database settings.
  
  Cause:
  
  Incorrect Optimizer Mode Setting: The optimizer mode may not be set correctly in the database configuration. This can happen if the setting is left blank or if an invalid value is provided.
  Database Compatibility: The optimizer mode may not be compatible with the version of the database you are using.
  Database Configuration Changes: Changes made to the database configuration without proper validation can lead to this error.
  
  
  Solution:
  
  
  Check Current Optimizer Mode: Use the database management tools or SQL commands to check the current optimizer mode setting. For example, in Oracle, you can query the OPTIMIZER_MODE parameter.
  SELECT value FROM v$parameter WHERE name = 'optimizer_mode';
  
  
  Set the Optimizer Mode: If the optimizer mode is