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

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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?

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

      i tried but not working

        did you try changing $NULL = 'NULL' to $NULL = undef;