Eddie Awad’s Blog - Latest Comments in ANY, SOME and ALL in Oracle

Re: ANY, SOME and ALL in Oracle

jan — Tue, 12 Aug 2008 02:48:33 -0000

Anguang,
SELECT *
FROM emp
WHERE sal >=800 AND sal >=null;
This query can return rows. Why?

Optimization, as you can see with explain plan.
My guess: 800 is sorted higher as Null, so we'll only test sal >=800.

Interesting question though.

Jan

Re: ANY, SOME and ALL in Oracle

Div Shah — Wed, 11 Jun 2008 06:28:49 -0000

Great Post. After 5 years I have understand real meaning and usefullness of any and all..

Hats Off

Thanks

Re: ANY, SOME and ALL in Oracle

Sanjeet Kumar — Tue, 01 Apr 2008 07:21:46 -0000

please tell me the querey of "

i want to details of that manager who have reported maximum no. of employees.........from emp table.

Re: ANY, SOME and ALL in Oracle

sandip — Mon, 10 Sep 2007 05:18:02 -0000

Really it is very nice post , It clear my confusion between any and some.

Re: ANY, SOME and ALL in Oracle

Eddie Awad — Mon, 23 Apr 2007 01:55:59 -0000

anguang, sal >=null is meaningless. It's either sal is null or sal is not null.

Re: ANY, SOME and ALL in Oracle

anguang — Sun, 22 Apr 2007 20:44:00 -0000

What is the meaning of the following query?

SELECT *
FROM emp
WHERE NOT manager_id <> ALL(800,1600,null);

Re: ANY, SOME and ALL in Oracle

anguang — Sun, 22 Apr 2007 20:41:36 -0000

SELECT *
FROM emp
WHERE sal >=800 AND sal >=null;
This query can return rows. Why?

SELECT *
FROM emp
WHERE sal >=null;
This query can not return rows. Why?

Re: ANY, SOME and ALL in Oracle

Bala — Wed, 14 Mar 2007 10:55:10 -0000

Very very descriptive and useful... Hats Off...

Re: ANY, SOME and ALL in Oracle

Jaime Lupa — Thu, 25 Jan 2007 12:24:14 -0000

Nice post, however I believe these operators make less readable a given query.

Re: ANY, SOME and ALL in Oracle

Eddie Awad — Tue, 09 Aug 2005 23:11:40 -0000

Robert,

Maybe you're right. Maybe Oracle introduced these comparison operators just because other databases have it, I do not know. I do know however that SQL Server has similar [ANY/SOME](http://msdn.microsoft.com/l... and [ALL](http://msdn.microsoft.com/l... operators. I still want to prove that using ANY, for example, is slower than using >, < or = instead. I'll put it on my to-do list.

Re: ANY, SOME and ALL in Oracle

Robert Vollman — Tue, 09 Aug 2005 19:49:20 -0000

Interesting.

Since the query optimizer changes these to more traditional queries, I wonder why these keywords exist.

I imagine it was to some community of people to write their queries in a way that was more comfortable or understandable for them.

If so, I wonder in which database or language these key words have their origin.

What do you think?