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T_sql problem

Author

Topic

hong_ma
Starting Member

37 Posts

Posted - 2006-02-10 : 14:13:06

Declare @F_ID int
DECLARE @CNT INT

SET @CNT = 1

while @CNT <5
Begin

SELECT @F_ID= [EntityID]
FROM [FACT].[dbo].[adReportingRequirement]

SET @CNT = @CNT + 1

print @F_ID

end

after runing, only print one value four time. why not is four different value?

TG
Master Smack Fu Yak Hacker

6065 Posts

Posted - 2006-02-10 : 14:37:05

You have no WHERE clause in your statement so the value of @f_id is being calculated 4 times each with the same result.

Be One with the Optimizer
TG

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2006-02-10 : 14:37:43

Because the value of @F_ID is not modified in your code. You need to add a WHERE clause to your query that reflects @CNT's changing value.

SELECT @F_ID= [EntityID]
FROM [FACT].[dbo].[adReportingRequirement]
WHERE SomeColumn = @CNT

Tara Kizer
aka tduggan

hong_ma
Starting Member

37 Posts

Posted - 2006-02-10 : 14:44:47

Thanks you guys. I got it

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