CODEWITHSUNDEEP
sqlmysqli
Venkat
Venkat

Reputation: 45

sql where clause with case & like

Blockquote

DECLARE @Symbol nvarchar(50);
DECLARE @EnDate1 Datetime;
DECLARE @StDate1 Datetime;
SET @Symbol = 'RIM12f'
SET @EnDate1 = '05/08/2012 9:00'
SET @StDate1 = '05 / 07 / 2012 12 : 00'
SELECT  *
FROM   Siri
WHERE (DATEADD(D, 0, DATEDIFF(D, 0, Date)) BETWEEN @StDate1 AND @EnDate1)
  AND  CASE Symbol = WHEN @Symbol = 'ALL'
                     THEN Symbol
                     ELSE Symbol LIKE LEFT(@Symbol, len(@Symbol) - 3) + '%'
       END

it does not works as same but it works with else @Symbol but i need all symbols like LEFT(@Symbol, len(@Symbol) - 3) + '%' if @Symbol other than all

Upvotes: 0

Views: 725

Answers (3)

ALZ
ALZ

Reputation: 1998

You cannot have in CASE both = and nested LIKE.. you can use LIKE or using OR and AND constructions.. (like suggested @Tony Hopkinson)

Here is modified case: 

Symbol like CASE WHEN @Symbol = 'ALL'
                     THEN Symbol
                     ELSE LEFT(@Symbol, len(@Symbol) - 3) + '%'
END

Upvotes: 0

Kapil Khandelwal
Kapil Khandelwal

Reputation: 16144

Modify you Case expression:

 Symbol LIKE CASE @Symbol WHEN 'ALL'
                     THEN Symbol
                     ELSE LEFT(@Symbol, len(@Symbol) - 3) + '%'

Upvotes: 2

Tony Hopkinson
Tony Hopkinson

Reputation: 20320

DECLARE @Symbol nvarchar(50); 
DECLARE @LikeSymbol nvarchar(50); 

DECLARE @EnDate1 Datetime; 
DECLARE @StDate1 Datetime; 
SET @Symbol = 'RIM12f' 
SET @EnDate1 = '05/08/2012 9:00' 
SET @StDate1 = '05 / 07 / 2012 12 : 00' 
SET @LikeSymbol = LEFT(@Symbol, length(@Symbol) - 3) + '%'
SELECT  * 
FROM   Siri 
WHERE (DATEADD(D, 0, DATEDIFF(D, 0, Date)) BETWEEN @StDate1 AND @EnDate1) 
AND (
(@Symbol = 'All')
OR
(Symbol Like @LikeSymbol)
)

A guess seeing as the intent of your query is far from clear

Upvotes: 0

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