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

final solution:

DECLARE @FrameNumbers TABLE (FrameNumber NVARCHAR(20) PRIMARY KEY)

DECLARE @pos int
SET @pos=CHARINDEX(',',@FrameNumber)
WHILE @pos>0 BEGIN
     INSERT @FrameNumbers SELECT LEFT(@FrameNumber,CHARINDEX(',',@FrameNumber)-1)
     SET @FrameNumber = SUBSTRING(@FrameNumber,CHARINDEX(',',@FrameNumber)+1,LEN(@FrameNumber))
     SET @pos=CHARINDEX(',',@FrameNumber)
END
IF LEN(@FrameNumber)>0 BEGIN
     INSERT @FrameNumbers SELECT @FrameNumber
END

select from myTable where c1 in (select FrameNumber from @FrameNumbers)

thanks Quassnoi and Sam, this solution is just a combination of your solutions.