In this post, you’ll learn about the IBM DB2 Error -20478 and the reason why you are receiving it
IBM DB2 Error Code :
-20478
Reason for this Error in DB2
THE STATEMENT CANNOT BE PROCESSED BECAUSE COLUMN MASK mask-name (DEFINED FOR COLUMN column-name) EXISTS AND THE COLUMN MASK CANNOT BE APPLIED OR THE DEFINITION OF THE MASK CONFLICTS WITH THE REQUESTED STATEMENT. REASON CODE reason-code.