How To Fix MC405 - Syntax of the view definition on the database is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 405

• Message text: Syntax of the view definition on the database is unknown

What causes this issue?

The view definition read from the database could not be interpreted.
Perhaps the view definition was not generated using the database utility
of the ABAP/4 Dictionary.

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?

Convert the view using the database utility (SE14).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC405 - Syntax of the view definition on the database is unknown ?

  The SAP error message MC405, which states "Syntax of the view definition on the database is unknown," typically occurs when there is an issue with the database view definition in the SAP system. This can happen for several reasons, including changes in the underlying database structure, issues with the database connection, or problems with the view itself.
  Causes:
  
  Database Changes: If there have been changes to the database schema (e.g., tables or fields have been added, modified, or deleted), the view may no longer be valid.
  View Definition Issues: The SQL syntax used in the view definition may be incorrect or incompatible with the database.
  Database Connection Problems: Issues with the connection to the database can lead to the inability to interpret the view definition.
  Transport Issues: If the view was transported from one system to another, it may not have been transported correctly, leading to inconsistencies.
  Database Version Compatibility: The version of the database may not support certain SQL features used in the view.
  
  Solutions:
  
  Check View Definition: Review the SQL definition of the view in the database. Ensure that it is syntactically correct and that all referenced tables and fields exist.
  Recreate the View: If the view is corrupted or invalid, consider dropping and recreating it. This can often resolve issues related to syntax or definition.
  Database Schema Synchronization: Ensure that the database schema is synchronized with the SAP application. This may involve running database consistency checks or adjustments.
  Check Transport Logs: If the view was transported, check the transport logs for any errors or warnings that may indicate issues during the transport process.
  Database Connection: Verify that the database connection is functioning correctly. Check for any network issues or configuration problems.
  Consult Documentation: Refer to SAP Notes or documentation related to the specific version of SAP and the database you are using. There may be known issues or patches available.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to check the view definition and SE14 (Database Utility) to manage database objects.
  Database Logs: Check the database logs for any errors or warnings that may provide more context about the issue.
  Support Community: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or database administrator for further investigation.