Conversion failed in cursor in stored procedure - sql-server

Question

Input like 111111 and 101,102,103,104
I want to check whether user has access on this requests or not...
I tried a cursor as shown, but I get this error:
Conversion failed when converting the varchar value '101,102,103,104' to data type int.
Code:
ALTER PROCEDURE [dbo].[ValidateRqstId]
#UserID VARCHAR(50),
#RsqtIDs VARCHAR(300)
AS
BEGIN
Declare #RqstId int
Declare #Result int
Declare #UserIDToCheck VARCHAR(50)
Declare #RqstUserVal cursor for
Select RequestId
from REQUEST_LIST
where RequestId in (#RsqtIDs)
BEGIN
OPEN RqstUserVal
FETCH NEXT from RqstUserVal into #RqstId
WHILE(##fetch_status <> -1)
BEGIN
SET #UserIDToCheck = (
select UserId from dbo.REQUEST_LIST where RequestId = #RqstId)
Print(#UserIDToCheck)
If(#UserIDToCheck != #UserID)
SET #Result = 99 ;
--Fetch the next row from the cursor
FETCH RqstUserVal into #RqstId
END
END
CLOSE RqstUserVal
Deallocate RqstUserVal
RETURN #Result
END
Thanks in advance

Answer 1

Depending on your SQL-Server Verion you can use a Table-Valued Function like in this short example
Select * from dbo.test1
Where ID in(
Select * from dbo.F_SplitAsIntTable('1,123,234,456'))
Function defined as
CREATE FUNCTION F_SplitAsIntTable
(
#txt varchar(max)
)
RETURNS
#tab TABLE
(
ID int
)
AS
BEGIN
declare #i int
declare #s varchar(20)
Set #i = CHARINDEX(',',#txt)
While #i>1
begin
set #s = LEFT(#txt,#i-1)
insert into #tab (id) values (#s)
Set #txt=RIGHT(#txt,Len(#txt)-#i)
Set #i = CHARINDEX(',',#txt)
end
insert into #tab (id) values (#txt)
RETURN
END
GO