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Re: MySQL Database DBD Error

by roboticus (Chancellor)
on Oct 11, 2012 at 17:50 UTC ( #998498=note: print w/ replies, xml ) Need Help??

in reply to MySQL Database DBD Error


If you're not using placeholders for your database code, then perhaps you've got a field with an embedded apostrophe in it. For example:

my $t = "Bobby Tables' and HeadName=1; drop table mytable;"; my $SQL = "select * from mytable where id='$t'"; print $SQL, "\n";

If you expand the resulting SQL and reformat it, you'll see that it's rather fortunate that HeadName isn't a column in your table!

select * from mytable where id='Bobby Tables' and HeadName=1; drop table mytable;


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

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