ORA Database Error Messages ORA-22957: NULL is an invalid input to powermultiset and COLLECT functions December 20, 2016 mpbod ORA-22957: NULL is an invalid input to powermultiset and COLLECT functions Cause: NULL was given as input to the powermultiset or COLLECT function Action: Give a non-null value as input 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)