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Help with SELECT and COUNT

Author

Topic

ynevet
Starting Member

10 Posts

Posted - 2009-11-05 : 04:58:56

Hi folks,

I would like to return only the rows where the value of theirs {ColumnName} column repeats in X rows or More in my table.

For example, from the following table I want to return the FirstNames David and Joe because they repeats 3 or more times in the table rows:

FirstName
David
Joe
Klark
David
David
David
Joe
Joe

I hope you can help me with the SQL script.

Thank you!

Yair

rajdaksha
Aged Yak Warrior

595 Posts

Posted - 2009-11-05 : 05:05:29

Hi

you mean DISTINCT and GROUP BY

-------------------------
R...

ynevet
Starting Member

10 Posts

Posted - 2009-11-05 : 05:07:57

Maybe if you said.

Do you know what is the correct query to get the desired result?

Yair

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2009-11-05 : 05:11:15

select Firstname, count(*) as [Count] from table group by Firstname having count(*) >= 3

No, you're never too old to Yak'n'Roll if you're too young to die.

rajdaksha
Aged Yak Warrior

595 Posts

Posted - 2009-11-05 : 05:11:54


DECLARE @TABLE TABLE(FIRSTNAME VARCHAR(10))

INSERT INTO @TABLE
SELECT 'DAVID' UNION ALL
SELECT'JOE'   UNION ALL
SELECT'KLARK'  UNION ALL
SELECT'DAVID' UNION ALL
SELECT'DAVID' UNION ALL
SELECT'DAVID' UNION ALL
SELECT'JOE' UNION ALL
SELECT'JOE' 


SELECT DISTINCT * FROM @TABLE

SELECT * FROM @TABLE GROUP BY FIRSTNAME