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Query to get first row of a set

 
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Deeps1234

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Joined: 26 Jun 2009
Posts: 2
Location: US

PostPosted: Sat Jun 27, 2009 12:19 pm    Post subject: Query to get first row of a set
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Hi,

One of my queries output is

Code:

Id       lower lmt     upper lmt
S1      0                 100
S1      0                 200
S1      0                 300
S1      100              200
S1      100              300
S1      200              300



I have pick the row containing lowest of upper lmt for a combination of Id and lower lmt.
Code:

Output should be:
S1     0          100
S1     100      200
S1     200      300

How to do this?

Help will be much appreciated.

Regards,
Deep
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vinay upadhyay

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Joined: 13 May 2007
Posts: 14
Location: chennai

PostPosted: Sat Jun 27, 2009 12:58 pm    Post subject: Reply to: Query to get first row of a set
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Please try this one and let me know


select * from table1 a where
a.upper_lmt =
(select min(upper_lmt) from table1
where lower_lmt = a.lower_lmt and id = a.id)
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sajjan jindal
Warnings : 1

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Joined: 09 Sep 2007
Posts: 60
Location: india

PostPosted: Thu Jul 02, 2009 1:37 pm    Post subject:
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Please check if the following query works.

select ID, lower lmt, MIN(UPPER lmt) as up lmt

from table1

group by ID, lower lmt.
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