SQL - using a variable for an IN clause

Question

I wish to do something like the following:

declare @FrameNumber nvarchar(20)
set @FrameNumber = \'(p1, p2)\'

select from myTable where c1 in @FrameNumber
         


        

Answer 1

CREATE FUNCTION [dbo].[func_ParseStringToTable] (@stringIN varchar(2000)) 
RETURNS @tOUT TABLE(RoomID int) AS
BEGIN
DECLARE @pos int
SET @pos=CHARINDEX(',',@StringIN)
WHILE @pos>0
     BEGIN
     INSERT @tOUT(RoomID) SELECT LEFT(@StringIN,CHARINDEX(',',@StringIN)-1)
     SET @stringIN = SUBSTRING(@StringIN,CHARINDEX(',',@StringIN)+1,LEN(@StringIN))
     SET @pos=CHARINDEX(',',@StringIN)
     END
IF LEN(@StringIN)>0
     BEGIN
     INSERT @tOUT(RoomID) SELECT @StringIN
     END
RETURN 
END

usage...

SELECT * FROM table WHERE id IN (func_ParseStringToTable(@ids))