Apache Derby DB Error Code 42X12 – Column name ‘‘ appears more than once in the CRE

Posted by AbundantCode

In this blog post, let’s learn about the error message “42X12- Column name ‘‘ appears more than once in the CRE” in Apache Derby Database and the description of the error.

Error Message

42X12- Column name ‘‘ appears more than once in the CRE

Error Details

Column name ‘‘ appears more than once in the CREATE TABLE statement.