DBI does the quoting for you. You should never use sprintf or other string formatting because the likeliness that your quoting is not sufficient is too big. Other people have solved that issue for you decades ago once and forever.

I have to admit this is untested, but it is very likely to work like this. 
$dbh->do('CREATE TABLE test (a ?, b INT)', undef, $SQL);

[download]

If not, have a look at http://search.cpan.org/~timb/DBI-1.613/DBI.pm#quote Or consolidate your SQL driver for quoting functions if you don't use DBI (Dare you!).

Regards
Tilman Baumann

In reply to Re: Detect SQL injection by DeepThought
in thread Detect SQL injection by jeanluca

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