How to pass string array in SQL parameter to IN clause in SQL

Question

A logic which I am doing in a complex way.

I just need to execute this query in a stored procedure:

select Sizes, SUM(Quantity)
from tbl_SizeBreakup
         


        

Answer 1

You can pass a list in a csv(coma separated values): '1,2,3', this string in the SP is useless, but you can convert to a table, first create this function:

CREATE FUNCTION fun_CSV_to_Table
(
@pcsvList varchar(max)
)
RETURNS @tableWithValues table(theColumn varchar(100))
AS
BEGIN 
    DECLARE @pos INT
    WHILE CHARINDEX(',', @pcsvList) > 0
    BEGIN
     SELECT @pos  = CHARINDEX(',', @pcsvList)   

     INSERT INTO @tableWithValues   
     SELECT LTRIM(RTRIM(SUBSTRING(@pcsvList, 1, @pos-1)))

     SELECT @pcsvList = SUBSTRING(@pcsvList, @pos+1, LEN(@pcsvList)-@pos)
    END
    --Insert the last value.
    INSERT INTO @tableWithValues SELECT @pcsvList

    RETURN
END
GO

And then you can use it:

 SELECT SIZES, SUM(QUANTITY)
 FROM TBL_SIZEBREAKUP
 WHERE BRAND=@BRAND
 AND COMBO IN (select theColumn FROM dbo.fun_CSV_to_Table(@aList)) 

/* @aList must be a csv: '1,2,3,...,n' */

You should care about white spaces.