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help with CASE statment

Author

Topic

pelegk2
Aged Yak Warrior

723 Posts

Posted - 2007-04-04 : 11:40:10

why this case illigeal or impossible?


SELECT @PI =
		Case
		WHEN @PI='N'  THEN  @PI=0
		WHEN @PI=N'SENDER' then SELECT PR  from tblData WHERE  mobile=@S
		WHEN @PI=N'RECIPIENT' then SELECT PR  from tblData WHERE  mobile=@R
		End

thnaks i nadvance
peleg

Israel -the best place to live in aftr heaven 9but no one wan't to go there so fast -:)

khtan
In (Som, Ni, Yak)

17689 Posts

Posted - 2007-04-04 : 11:44:45

[code]
SELECT @PI =
Case
WHEN @PI='N' THEN ~~@PI=~~ 0
WHEN @PI=N'SENDER' then (SELECT PR from tblData WHERE mobile=@S)
WHEN @PI=N'RECIPIENT' then (SELECT PR from tblData WHERE mobile=@R)
End
[/code]

khtan
In (Som, Ni, Yak)

17689 Posts

Posted - 2007-04-04 : 11:49:21



SELECT	@PI = case 	when 	@PI = 'N' 
			then 	0
			else	PR
			end
FROM	tblData
where	@PI	= 'N'
or	mobile	= case 	when 	@PI = 'SENDER' 		then @S
			when 	@PI = 'RECIPIENT'	then @R
			end

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2007-04-04 : 12:45:39

IF @PI = 'Sender'
	SELECT	@PI = PR
	FROM	tblData
	WHERE	Mobile = @S
ELSE
	IF @PI = 'Recipient'
		SELECT	@PI = PR
		FROM	tblData
		WHERE	Mobile = @R
	ELSE
		IF @PI = 'N'
			SET @PI = '0'

Peter Larsson
Helsingborg, Sweden

pelegk2
Aged Yak Warrior

723 Posts

Posted - 2007-04-05 : 03:51:24

thnaks all of u!
by the way : is one of the way's it better in performance then the others?

Thnaks
peleg

Israel -the best place to live in aftr heaven 9but no one wan't to go there so fast -:)

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2007-04-05 : 04:04:12

Set the execution plan and see

Madhivanan

Failing to plan is Planning to fail

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