Apache Derby DB Error Code 42X79 – Column name ‘‘ appears more than once in the res

Posted by AbundantCode

In this blog post, let’s learn about the error message “42X79- Column name ‘‘ appears more than once in the res” in Apache Derby Database and the description of the error.

Error Message

42X79- Column name ‘‘ appears more than once in the res

Error Details

Column name ‘‘ appears more than once in the result of the query expression.