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group by?

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rosenrosen
Starting Member

3 Posts

Posted - 2008-09-24 : 16:33:29

Lets say I have 3 columns A,B,C I want to return the data from each column but I only want to see 1 result per A.

| A | B | C |
----------------------
dog run fast
cat eat food
dog chase car
rat eat cheese

In this example, I want a select statement that returns 3 rows. I can take either "dog" row (but not both, that's my point). "distinct" and "group by" don't seem to be the answer but I'm probably missing something. thanks

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2008-09-24 : 16:40:45

SELECT dt.A, dt.B, t.C
FROM YourTable t
INNER JOIN (SELECT A, MAX(B) FROM YourTable GROUP BY A) dt
ON t.A = dt.A AND t.B = dt.B

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2008-09-24 : 16:41:04

select top 3 a, b, c
from (
SELECT a, b, c, row_number() over (partition by a order by newid()) AS recid from table1
) AS d
where recid = 1

E 12°55'05.63"
N 56°04'39.26"

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