ORA Database Error Messages ORA-02291: integrity constraint (string.string) violated โ parent key not found June 17, 2015 mpbod ORA-02291: integrity constraint (string.string) violated โ parent key not found Cause: A foreign key value has no matching primary key value. Action: Delete the foreign key or add a matching primary key. 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)