Comments on: An alternative to DISTINCT http://awads.net/wp/2006/03/08/an-alternative-to-distinct/ News, views, tips and tricks on Oracle and other fun stuff Fri, 21 Nov 2008 04:24:39 +0000 http://wordpress.org/?v=2.6.3 By: Nevel http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-51674 Nevel Fri, 12 Oct 2007 10:14:35 +0000 http://awads.net/wp/?p=232#comment-51674 <p>Cool post! Just had an issue with a query for which both group by and distinct didn't work. Or at least, not the way I wanted it too ;). This solution worked fine though, since it literally enforces the uniqueness.</p> <p>Very nice!</p> Cool post! Just had an issue with a query for which both group by and distinct didn’t work.
Or at least, not the way I wanted it too ;). This solution worked fine though, since it literally enforces the uniqueness.

Very nice!

]]> By: Eddie Awad http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-23293 Eddie Awad Mon, 03 Jul 2006 15:42:49 +0000 http://awads.net/wp/?p=232#comment-23293 <p>Mostafa, the link you provided is for PostgreSQL not for Oracle. I do not know PostgreSQL so I cannot intelligently comment on it. However, I do know one thing, instead of saying: "using a SELECT DISTINCT SQL query is not a good idea", I would say: "use distinct wherever and whenever you <i>have to</i>.</p> Mostafa, the link you provided is for PostgreSQL not for Oracle. I do not know PostgreSQL so I cannot intelligently comment on it. However, I do know one thing, instead of saying: “using a SELECT DISTINCT SQL query is not a good idea”, I would say: “use distinct wherever and whenever you have to.

]]> By: Mostafa http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-23200 Mostafa Mon, 03 Jul 2006 05:53:59 +0000 http://awads.net/wp/?p=232#comment-23200 <p>select distinct is the easy way,however,it can prove to be slow compared to other methods specialy on large tables.</p> <p>read more about this <a href="http://www.databasejournal.com/features/postgresql/article.php/3437821" rel="nofollow">here</a></p> select distinct is the easy way,however,it can prove to be slow compared to other methods specialy on large tables.

read more about this here

]]> By: Eddie Awad http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-4368 Eddie Awad Fri, 14 Apr 2006 01:17:16 +0000 http://awads.net/wp/?p=232#comment-4368 <p>Petri, sure you can simply write that too.</p> Petri, sure you can simply write that too.

]]> By: Petri http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-4351 Petri Thu, 13 Apr 2006 10:36:40 +0000 http://awads.net/wp/?p=232#comment-4351 <p>Why don't you simply write: select distinct department_id from employees order by department_id;</p> Why don’t you simply write: select distinct department_id from employees order by department_id;

]]> By: Eddie Awad http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-2106 Eddie Awad Thu, 09 Mar 2006 17:07:38 +0000 http://awads.net/wp/?p=232#comment-2106 <p>This post is a perfect example of <i>cool</i> versus <i>simple</i>. However, sometimes, I do find some cool <i>and</i> simple solutions to some not so simple problems.</p> This post is a perfect example of cool versus simple. However, sometimes, I do find some cool and simple solutions to some not so simple problems.

]]> By: Jeff Hunter http://awads.net/wp/2006/03/08/an-alternative-to-distinct/#comment-2105 Jeff Hunter Thu, 09 Mar 2006 14:26:54 +0000 http://awads.net/wp/?p=232#comment-2105 <p>Cool trumps simple every time!</p> Cool trumps simple every time!

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