ORA Database Error Messages ORA-02443: Cannot drop constraint – nonexistent constraint June 19, 2015 mpbod ORA-02443: Cannot drop constraint – nonexistent constraint Cause: alter table drop constraint <constraint_name> Action: make sure you supply correct constraint name. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)