Show us code. I suspect that you're constucting an
INSERT/UPDATE query by using string interpolation or simple concatenation (a bad idea), rather than using bind variables, which give you automagic, database-specific quoting.
Ponder the difference between
my $name = $cgi->param('name');
my $query = "INSERT ... VALUES($name)";
and
my $name = $cgi->param('name');
my $query = "INSERT ... VALUES("
. dbi->quote($name)
. ")";
and note that
quote() gets invoked automagically when you
execute() a query and provide values for placeholders in the query.
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