DBD::mysql::st execute failed

bigup401 has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: DBD::mysql::st execute failed by hippo (Archbishop) on Oct 25, 2018 at 15:11 UTC
`$NULL = 'NULL';` How do you suppose this will be interpreted as the bound argument?	[reply] [d/l]
Re: DBD::mysql::st execute failed by localshop (Monk) on Oct 25, 2018 at 16:35 UTC
I think perhaps what you are looking for is SQL Syntax 'IS NULL' rather than = NULL	[reply]
Re^2: DBD::mysql::st execute failed by bigup401 (Pilgrim) on Oct 25, 2018 at 21:39 UTC
i tried but not working	[reply]
Re^3: DBD::mysql::st execute failed by localshop (Monk) on Oct 26, 2018 at 07:50 UTC
did you try changing $NULL = 'NULL' to $NULL = undef;	[reply]
Re^4: DBD::mysql::st execute failed by bigup401 (Pilgrim) on Oct 26, 2018 at 10:36 UTC