One minor point of style/performance is that it is often nice to use placeholders.

my $sth = $dbh->prepare( 'SELECT Questions, Answers from QA where ID =
+ ?' );
$sth->execute($id);
# put your bind_columns and fetches in
# and if you really want then you can do
$sth->finish;
$sth->execute($id2);
# and get another set of data (thought this situation doesn't look lik
+e it wants that)
[download]

This technique is know as using placeholders and has several advantages to your technique of interpolation in the SQL statement.

• Statements prepared are cached for performance, which is no use if you keep on changing them slightly
• If data you are interpolating contains characters such as " or ' they will break the statement. To solve this you can run all the data through $dbh->quote(), but placeholders are easier than that.
• Placeholders are cool :)
• They allow easy SQL statement reuse if you are applying a query multiple times with only the parameters tested in the WHERE clause are changing.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.