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Re^2: Flexible Update SQL

by bichonfrise74 (Vicar)
on Dec 02, 2010 at 01:14 UTC ( #874795=note: print w/ replies, xml ) Need Help??


in reply to Re: Flexible Update SQL
in thread Flexible Update SQL

But this does not solve the problems:

  • passing null parameters...
  • placement of the comma...


  • Comment on Re^2: Flexible Update SQL
    Re^3: Flexible Update SQL
    by roboticus (Canon) on Dec 02, 2010 at 02:53 UTC

      bichonfrise74:

      Actually, placeholders *do* handle the null parameter. Constructing the update statement can do the rest...

      my @fields = qw(name phone city country); my $SQL = "update table set " . join(", ", map { "$_=?" } @fields) . "where ...."; my $ST=$DB->prepare($SQL); while (...) { my @values = (.....); $ST->execute(@values); }

      ...roboticus

      When your only tool is a hammer, all problems look like your thumb.

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