How To Fix RTC_COMM020 - Generated SQL string contains invalid characters

SAP Error Message - Details

• Message type: E = Error

• Message class: RTC_COMM -

• Message number: 020

• Message text: Generated SQL string contains invalid characters

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RTC_COMM020 - Generated SQL string contains invalid characters ?

  The SAP error message RTC_COMM020, which states "Generated SQL string contains invalid characters," typically occurs when there are issues with the SQL query being generated by the system. This can happen in various contexts, such as when using SAP BW (Business Warehouse), SAP HANA, or other SAP applications that involve database interactions.
  Causes:
  
  Invalid Characters: The SQL string may contain characters that are not allowed in SQL syntax, such as special characters or control characters.
  Data Type Mismatch: If the data being passed to the SQL query does not match the expected data types, it can lead to invalid SQL generation.
  Improper Formatting: The SQL string may not be properly formatted, leading to syntax errors.
  Configuration Issues: Incorrect settings in the SAP system or in the database connection can lead to issues in SQL generation.
  User Input: If user input is being used to generate SQL queries, it may contain invalid characters.
  
  Solutions:
  
  Check SQL Syntax: Review the generated SQL string for any syntax errors or invalid characters. Ensure that it adheres to the SQL standards expected by the database.
  Sanitize Input: If user input is involved, ensure that it is properly sanitized to remove any invalid characters before being used in SQL queries.
  Data Type Validation: Ensure that the data types of the variables being used in the SQL query match the expected types in the database.
  Review Configuration: Check the configuration settings in SAP and the database connection settings to ensure they are correct.
  Debugging: Use debugging tools to trace the SQL generation process and identify where the invalid characters are being introduced.
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance related to the version of SAP you are using.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to identify and resolve the issue causing the RTC_COMM020 error in your SAP environment.