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sql query, second or third top employee..

 
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mijanurit
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Joined: 26 Aug 2005
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PostPosted: Sun Jan 01, 2006 10:19 pm    Post subject: sql query, second or third top employee..
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hi experts,

plz tell me the sql query to retrieve second or third top (based on salary)
employee in a org.

regards
mija
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aklima

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Joined: 25 Nov 2005
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PostPosted: Mon Jan 02, 2006 6:38 am    Post subject: reply
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hi,

select * from employee where salary =(select max(salary) from employee where salary < (select max(salary) from employee))

i hope this will work for the second max

bye
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priyesh.agrawal

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PostPosted: Mon Jan 02, 2006 10:03 am    Post subject: Re: sql query, second or third top employee..
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aklima,
Quote:
i hope this will work for the second max

Yeah, it would.

But this approach can be very tedious while making for big numbers like TOP 25th ....As it needs to cascade Subqueries inturn,

You can give a try to this query ....
Code:
SELECT EMP-ID, EMP-NAME, SALARY FROM <TABLE-NAME> A
WHERE N = (SLECT COUNT(*) FROM <TABLE-NAME> B WHERE B.SALARY<A.SALARY);


Regards,

Priyesh.
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aklima

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PostPosted: Mon Jan 02, 2006 10:29 am    Post subject:
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sure priyesh i shall try out this
bye and thanx
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cheli

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Joined: 21 Jul 2005
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PostPosted: Mon Jan 02, 2006 11:17 am    Post subject: Re: sql query, second or third top employee..
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Hi...a small correction the query given by Priyesh...

Code:
SELECT EMP-ID, EMP-NAME, SALARY FROM <TABLE-NAME> A
WHERE N-1 = (SLECT COUNT(*) FROM <TABLE-NAME> B WHERE B.SALARY<A.SALARY);


[/code]
Here N gives the no:of Nth maximum as u required.

Bye..
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rajesh_1183

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PostPosted: Mon Jan 02, 2006 11:51 am    Post subject: sql query, second or third top employee
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Hi,

Can anybody explain the query step by step how it works with an example

Thanks,
Rajesh
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winchaat

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Joined: 23 Mar 2005
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PostPosted: Mon Jan 02, 2006 12:11 pm    Post subject:
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A few corrections in above replied answers:

For nth maximum salary query should be like this

SELECT salary FROM HUND7.EMPLOY A WHERE N=(SELECT COUNT (DISTINCT(SALARY)) FROM HUND7.EMPLOY B WHERE A.SALARY<=B.SALARY)


if we missed distinct keyword then duplication rows also counted and give
the result as some other value.


explanation
The above query takes one row from a table and compare with each row based on the salary value and get the count for that which should be equal to value u given.
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kumar_s

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PostPosted: Wed Mar 15, 2006 4:35 pm    Post subject:
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May i know how to find the same, with making use of 'rownumber' funcition.
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kumar_s

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PostPosted: Thu Mar 16, 2006 9:47 am    Post subject:
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Or may I know the Syntax to use the ROWNUMBER function.
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