Comments on: 10 Essential SQL Tips for Developers

By: Tony.C

Tony.C — Sun, 25 Oct 2009 11:20:51 +0000

Always use stored procs, or your local equivalent to avoid sql injection issues.

And know our execution engine! Sometimes something as small as moving a where clause into a join clause can save a large percentage of execution cost(And also give you a demo on why code in a “SELECT .. FROM” section is bad).

And get the right IDE, there is always work to do on very large databases, and automating as much of it as possible will save you time and allow for more work on optimisation.

By: เพชร

เพชร — Tue, 22 Sep 2009 11:08:02 +0000

very helpful tutorial

By: Richard S.

Richard S. — Tue, 25 Aug 2009 08:32:36 +0000

I would like to see more information about tables joins because there so little information on the Internet and it seems to be very helpful for all of us.

By: KubidaQ

KubidaQ — Thu, 16 Jul 2009 03:03:26 +0000

You should just learn attacks which will be come from hackers. If you don’t know your enemy’s tactics, you will fail.

By: John

John — Wed, 15 Jul 2009 12:50:37 +0000

You’d be better using

SELECT firstName, lastName, shippingAddress FROM customer WHERE customerID = 1001
LIMIT 1;

on single row searches

By: Banger

Banger — Mon, 06 Jul 2009 11:44:16 +0000

Oh, I’ve had coworkers who claimed to be “experts”, but neither sanitized their database inputs nor used more than one index – PRIMARY of course. Full table scans FTW!
Nobody sobbed when they quit.

By: Manuel

Manuel — Thu, 02 Jul 2009 16:10:55 +0000

Impressing basic approach to a lot of problems.
Not only that there are more points to be considered, as written in the conclusion, also, those already mentioned points need to be considered much more thoroughly.

By: Ron

Ron — Wed, 01 Jul 2009 19:21:09 +0000

Nicely done!

In regards to fully qualifying the database object name, it is probably overkill if you are working on a smaller application / database. However my experience has been that it is amazingly important in any medium-to-enterprise level application.

By: Mida

Mida — Tue, 30 Jun 2009 10:34:26 +0000

Very nice tips, thanks alot

By: Jacob

Jacob — Mon, 15 Jun 2009 20:40:43 +0000

Create tutorial, all tips are useful and well described to easiest understanding.