How To Fix CNV_IUUC_DB_CONN126 - No columns found for the table &1.&2, db connection &3.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 126

• Message text: No columns found for the table &1.&2, db connection &3.

What causes this issue?

The field list for the specified table in the given schema is empty.

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?

Please check if the specified table and the schema exist in the queried
database.

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_IUUC_DB_CONN126 - No columns found for the table &1.&2, db connection &3. ?

  The SAP error message CNV_IUUC_DB_CONN126 indicates that there are no columns found for a specified table in the database connection. This error typically arises during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools.
  Cause:
  
  Table Does Not Exist: The specified table may not exist in the database.
  Incorrect Database Connection: The database connection specified may not be pointing to the correct database or schema where the table resides.
  Insufficient Permissions: The user account used for the database connection may not have the necessary permissions to access the table or its columns.
  Schema Issues: The table might exist in a different schema than the one being queried.
  Data Dictionary Issues: There may be inconsistencies or issues in the data dictionary that prevent the system from recognizing the table or its columns.
  
  Solution:
  
  Verify Table Existence: Check if the table exists in the database by executing a query directly against the database.
  SELECT * FROM <schema>.<table_name>;
  
  Check Database Connection: Ensure that the database connection is correctly configured and pointing to the right database/schema.
  Review User Permissions: Confirm that the user account has the necessary permissions to access the table and its columns. You may need to grant additional permissions if required.
  Schema Verification: Make sure that you are referencing the correct schema. If the table exists in a different schema, adjust your queries or connection settings accordingly.
  Data Dictionary Check: If you suspect data dictionary issues, you may need to refresh or regenerate the data dictionary entries. This can sometimes be done through transaction codes like SE11 or SE14.
  Consult Logs: Check the logs for more detailed error messages that might provide additional context about the issue.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and ST22 (Dump Analysis) to investigate further.
  SAP Notes: Look for relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the documentation for the specific data migration tool you are using, as it may have specific requirements or configurations that need to be met.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with a database administrator for further assistance.