distinct but include all the columns

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distinct but include all the columns

Author

Topic

AdamWest
Constraint Violating Yak Guru

360 Posts

Posted - 2013-11-01 : 10:29:46

I have this but how can I get all the columns of the row? I only want them distinct per these 2 cols.

SELECT DISTINCT OrdHst.ordernbr, OrdNbr.trans
FROM OrdHst JOIN OrdNbr
ON OrdHst.ordernbr = OrdNbr.ordernbr
ORDER BY 1,2

Could return:

12345 001
12345 AAA
12345 BBB
12345 CCC
12345 PWB

James K
Master Smack Fu Yak Hacker

3873 Posts

Posted - 2013-11-01 : 11:13:15

Which of the possible multiple values from the other columns do you want to get? One way would be as shown below. Change the ORDER BY clause in the row_number function to control which values for the other columns get picked up:

SELECT
	*
FROM 
(
SELECT
	*,
	ROW_NUMBER() OVER (PARTITION BY OrdHst.ordernbr, OrdNbr.trans ORDER BY OrdHst.ordernbr) AS RN
FROM OrdHst JOIN OrdNbr
	ON OrdHst.ordernbr = OrdNbr.ordernbr
) s WHERE RN = 1

AdamWest
Constraint Violating Yak Guru

360 Posts

Posted - 2013-11-01 : 11:30:52

Would want all the columns just distincting on the order# and trncde
when trncde is one of these 3 (PDB, PWB, PBB).

quote:
Originally posted by James K

Which of the possible multiple values from the other columns do you want to get? One way would be as shown below. Change the ORDER BY clause in the row_number function to control which values for the other columns get picked up:
SELECT
*
FROM
(
SELECT
*,
ROW_NUMBER() OVER (PARTITION BY OrdHst.ordernbr, OrdNbr.trans ORDER BY OrdHst.ordernbr) AS RN
FROM OrdHst JOIN OrdNbr
ON OrdHst.ordernbr = OrdNbr.ordernbr
) s WHERE RN = 1

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