How To Fix DDLS320 - String column & is not possible with SELECT DISTINCT

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 320

• Message text: String column & is not possible with SELECT DISTINCT

Self-Explanatory Message

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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 DDLS320 - String column & is not possible with SELECT DISTINCT ?

  The SAP error message DDLS320 indicates that there is an issue with using the SELECT DISTINCT statement on a string column in a database table. This error typically arises when the database system does not support the use of SELECT DISTINCT on certain data types, particularly string columns, due to the way it handles distinct values.
  
  Cause:
  The primary cause of this error is that the database engine (such as SAP HANA, Oracle, or others) has limitations or specific requirements regarding the use of SELECT DISTINCT with string columns. This can happen if:
  
  The string column has a large size or is of a type that does not support distinct operations efficiently.
  The database is configured in a way that restricts the use of SELECT DISTINCT on certain data types.
  There are underlying issues with the data model or the way the query is structured.
  
  
  Solution:
  To resolve the DDLS320 error, you can consider the following approaches:
  
  
  Modify