Here's a function which checks if a variable has data or not.Before firing an SQL statement, use this function on all the parameters being passed : 
sub returndata_or_null {
  my $var = shift;
  $var =~ s/\'/\'\'/og;
  return ($str) ? "'$str'" : "null";
}

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In reply to Re: checkbox by screamingeagle
in thread checkbox by Anonymous Monk

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