How To Fix DDLS391 - ( allowed types: & )

DDLS391 - Overview

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 391

• Message text: ( allowed types: & )

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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DDLS391 - Details

• The SAP error message DDLS391 typically indicates that there is an issue with the data type being used in a Data Definition Language (DDL) statement, such as when creating or altering database objects like tables or views. The message usually specifies that the data type being used is not allowed or is invalid for the operation being performed.
  
  Cause:
  The error message DDLS391 can occur due to several reasons:
  
  Invalid Data Type: The data type specified in the DDL statement is not supported or recognized by the database system.
  Mismatched Data Types: The data type used does not match the expected data type for the column or field in the database.
  Database Compatibility: The data type may not be compatible with the database version or the specific database system being used (e.g., HANA, Oracle, etc.).
  Syntax Errors: There may be syntax errors in the DDL statement that lead to the misinterpretation of the data type.
  
  
  Solution:
  To resolve