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WallaceC
Beginner
Joined: 17 Dec 2002
Posts: 22
Topics: 10
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 Posted: Tue Mar 02, 2010 3:45 pm Post subject: Get Part Keys that Have Max Count |
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I have the following table TBL:
| Code: |
KEY1 KEY2 KEY3 FLD4
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A A A WWW
B A A XXX
A B B EEE
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I want to get the combination of KEY2 and KEY3 with maximum count of rows as follow:
| Code: |
KEY2 KEY3 COUNT
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A A 2
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Could anyone tell me how it can be on a query? |
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kolusu
Site Admin
Joined: 26 Nov 2002
Posts: 12394
Topics: 75
Location: San Jose
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| Posted: Tue Mar 02, 2010 4:04 pm Post subject: |
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WallaceC,
Unless I am missing something , isn't it simple as this
| Code: |
SELECT KEY2
,KEY3
,COUNT(*) AS COUNT
FROM TABLE
GROUP BY KEY2
,KEY3
ORDER BY 3 DESC
FETCH FIRST 1 ROW ONLY
;
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Kolusu |
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WallaceC
Beginner
Joined: 17 Dec 2002
Posts: 22
Topics: 10
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| Posted: Tue Mar 02, 2010 4:45 pm Post subject: |
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I got -904 for the query. I do not know whether it is related to the setup of the shop or not, but I will verify.
| Quote: |
DSNT408I SQLCODE = -904, ERROR: UNSUCCESSFUL EXECUTION CAUSED BY AN
UNAVAILABLE RESOURCE. REASON 00C90084, TYPE OF RESOURCE 00000100, AND
RESOURCE NAME DSNDB07
DSNT418I SQLSTATE = 57011 SQLSTATE RETURN CODE
DSNT415I SQLERRP = DSNXRSOR SQL PROCEDURE DETECTING ERROR
DSNT416I SQLERRD = -115 13172746 0 13231826 -959250432 14090279 SQL
DIAGNOSTIC INFORMATION
DSNT416I SQLERRD = X'FFFFFF8D' X'00C9000A' X'00000000' X'00C9E6D2'
X'C6D30000' X'00D70027' SQL DIAGNOSTIC INFORMATION
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papadi
Supermod
Joined: 20 Oct 2009
Posts: 594
Topics: 1
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