How To Fix DDLS392 - Select lists with unions must have the same name or else insert aliases

DDLS392 - Overview

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 392

• Message text: Select lists with unions must have the same name or else insert aliases

Self-Explanatory Message

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DDLS392 - Details

• The SAP error message DDLS392 indicates that there is an issue with the SQL SELECT statement in your ABAP program or database view definition. Specifically, this error occurs when you are using a UNION operation in your SQL query, and the columns in the SELECT lists of the combined queries do not have the same names or are not properly aliased.
  
  Cause:
  When using a UNION in SQL, the following rules must be adhered to:
  
  The number of columns in each SELECT statement must be the same.
  The data types of the corresponding columns must be compatible.
  The column names in the result set must either be the same or must be explicitly aliased.
  
  If the column names differ between the SELECT statements, you will encounter the DDLS392 error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Ensure Column Names Match: Make sure that the columns in each SELECT statement of the UNION have the same