How To Fix DT745 - Tab &: Row or Column Store Info from DB cannot be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 745

• Message text: Tab &: Row or Column Store Info from DB cannot be determined

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT745 - Tab &: Row or Column Store Info from DB cannot be determined ?

  The SAP error message DT745, which states "Tab &: Row or Column Store Info from DB cannot be determined," typically occurs in the context of SAP HANA database operations. This error indicates that the system is unable to determine whether a particular table is stored in a row store or a column store format. This can happen for several reasons, including issues with the database configuration, metadata inconsistencies, or problems with the specific SQL query being executed.
  Causes:
  
  Metadata Issues: The metadata for the table may be corrupted or not properly synchronized, leading to confusion about the storage format.
  Database Configuration: The database may not be configured correctly, or there may be issues with the database connection.
  SQL Query Issues: The SQL query being executed may reference a table that does not exist or is not accessible in the current context.
  Table Type Changes: If the table type has been changed (e.g., from row store to column store or vice versa) without proper handling, it may lead to this error.
  Database Version: Compatibility issues with the version of SAP HANA being used may also contribute to this error.
  
  Solutions:
  
  Check Table Metadata: Verify the metadata for the table in question. You can use SQL commands to check the table definition and ensure it is correctly defined.
  SELECT * FROM M_TABLES WHERE TABLE_NAME = '<your_table_name>';
  
  Recreate the Table: If the metadata is corrupted, consider recreating the table. Make sure to back up any necessary data before doing this.
  Database Configuration: Review the database configuration settings to ensure they are correct. Check for any recent changes that may have affected the database.
  Check SQL Query: Review the SQL query for any errors or references to non-existent tables. Ensure that the table names are correctly spelled and that the schema is correctly specified.
  Database Restart: Sometimes, simply restarting the database can resolve transient issues related to metadata or connections.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, especially if it appears to be a bug or a deeper issue with the database.
  
  Related Information:
  
  SAP HANA Documentation: Review the official SAP HANA documentation for more details on table storage formats and metadata management.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Logs: Check the system logs for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the DT745 error in your SAP environment.