sql condition checking

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I have a table consist of a column 'Marks'. In that marks I've to check whether it is greater than 50 or not. If it is 50 its pass else fail, for this I wrote a query as

SQL

SELECT MARKS,

              CASE WHEN MARKS >= 50 THEN 'PASS'

              ELSE 'FAIL'

              END AS STATUS

              FROM TABLENAME

here I can get the expected result, but the problem is I need to give a parameter as, if I give 0 it shold display only the fail results, and if I give 1 should show only pass, if 2, both fail and pass.........how is it possible can anyone help

Posted 14-Mar-12 19:04pm

abdul samathu

Updated 14-Mar-12 19:13pm

member60

v2

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Comments

abdul samathu 15-Mar-12 2:34am

I need to use this in ssrs

2 solutions

Solution 1

Here is the code:

SQL

DECLARE @ParamVal int
SET @ParamVal = 2

SELECT
CASE @ParamVal
WHEN 0 THEN 
   SELECT MARKS,
   CASE WHEN MARKS < 50 THEN 'FAIL'
   END AS STATUS
WHEN 1 THEN 
   SELECT MARKS,
   CASE WHEN MARKS >= 50 THEN 'PASS'
   END AS STATUS
   FROM TABLENAME
WHEN 2 THEN 
   SELECT MARKS,
   CASE WHEN MARKS >= 50 THEN 'PASS'
   ELSE 'FAIL'
   END AS STATUS
   FROM TABLENAME

Posted 14-Mar-12 19:12pm

Ganesan Senthilvel

Comments

abdul samathu 15-Mar-12 1:31am

thanks ganesan, but it shows error,like incorrect syntax near Select statement

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Saral S Stalin · Accepted Answer · 2012-03-14T19:59:00

Solution 2

Below query should work fine

SQL

DECLARE @Param AS BIT = 1 -- Parameter for PASS/FAIL selection

 SELECT MARKS,
    CASE WHEN MARKS >= 50 THEN 'PASS'
    ELSE 'FAIL'
    END AS STATUS
FROM TABLENAME
WHERE (@Param = 1 AND MARKS >= 50) -- Pass results
OR (@Param = 0 AND MARKS < 50) -- Fail results
OR @Param IS NULL -- All results

Posted 14-Mar-12 19:59pm

Saral S Stalin

Comments

abdul samathu 15-Mar-12 2:06am

thanks stalin, how can I use this in ssrs