Question

I am passing a delimited string to a stored procedure that is composed by empId|ProductId + a comma as delimiter
with the purpose of filling a link table. using SQL Server 2008

     EmployeeOrderLink  Table to be filled
     EmpId
     OrderId
     ProductId

Example of a possible key

     MyKeyIds="EmpId|ProductId,
     EG 2232|33,4555|111,43343|65 etc...

How do I loop through the string split it and insert into the table eg

   while MyKeyIds  ???
   Logic --PLEASE NOTE THAT EACH KEY IS COMPOSED BY 2 VALUES 
 AND SEPARATED BY THE COMMA.DELIMETER IS USED TO SEPARATE THE INNER VALUES OF THE KEY

         @myEmpID=--Get EmpId from split string
         @myProductId =Get productId from split string

         INSERT EmployeeOrderLinkend(EmpId,OrderId,ProductId)
         VALUES(@myEmpID,@OrderIdPassedAsParamInSP, @myProductId)
    END

Any suggestion on how to split the above key and extract the appropriate values?
Thanks a lot

Answer 1

Here is an example of the split function in SQL. Another tutorial is this. Using it I think I would do the below to split at the comma. You would have to then add the code to split at the | also.

DECLARE @MyKeyIds NVARCHAR(40)
DECLARE @IDset NVARCHAR(40)
DECLARE @Pos INT
DECLARE @NextPos INT
DECLARE @Delimiter NVARCHAR(40)

SET @Delimiter = ','
Set @MyKeyIds='2232|33,4555|111,43343|65'+ @Delimiter 
SET @Pos = charindex(@Delimiter, @MyKeyIds)

WHILE (@pos <> 0)
BEGIN
    SET @IDset = substring(@MyKeyIds,1,@Pos - 1)
    SELECT @IDset -- Show Results
    SET @MyKeyIds = substring(@MyKeyIds,@Pos+1,len(@MyKeyIds))
    SET @Pos = charindex(@Delimiter,@MyKeyIds)
END