Execute a stored procedure with multiple IDs - sql-server

Question

I have a PersonInformation table that contains the information below:
| PersonID | Name | Status
+----------+------+------------
| 1234 | John | Active
| 5678 | Mary | Inactive
| 1090 | Tery | Active
| 1554 | Cary | Inactive
I also have a stored procedure called SpStats that does some calculations using PersonID and returns the results of stat_a, stat_b.
I need to execute the SpStats stored procedure for each active person in the PersonInformation table using their PersonID.
It is basically
SELECT PersonId, Name, Status, {Exec SpStats for related PersonID}
FROM PersonInformation
WHERE status = 'Active'
The expected result is this:
| PersonID | Name | Status | stat_a | stat_b |
+----------+------+--------+--------+--------+
| 1234 | John | Active | 25 | 45 |
| 1090 | Tery | Active | 10 | 67 |

Answer 1

If you can create a user defined table function that will do what your stored procedure does, you could use cross apply to get it's results for each row in the select.
Assuming it accepts the PersonID value, it can be done like this:
SELECT PersonId, [Name], [Status], stat_a, stat_b
FROM PersonInformation
CROSS APPLY dbo.UDFStats(PersonID) as stats
WHERE [Status] = 'Active'
Note that CROSS APPLY will not work with stored procedures.

Answer 2

Create your own custom type like so
--Table Valued Parameter Type used for passing lists of Int IDs.
CREATE TYPE [MySchema].[UniqueIDListType] AS TABLE
(
[ID] Int NOT NULL
);
Then in your stored proc set the input parameter to your type
CREATE PROCEDURE [MySchema].[MyProc]
#MyIDList [MySchema].[UniqueIDListType] READONLY
AS
And there you go, you can use your parameter like a table in your select
WHERE EXISTS (SELECT * FROM #MyIDList WHERE ID = PersonID);
You will get a full result set for each id then. Pass it in to the proc like you would any other parameter, you'll just need to format the ids into this single collection. And the bonus is you can reuse your new table valued parameter everywhere you need to do this again. Reusability!! Yay!
If you can't do this, then I'm assuming you can't with your requirements or permissions make a function either, I would then just loop through programmatically and make a table variable in your sql, call the proc for each person, insert that result in your table, and join that on your final select result set when you're all done.

Answer 3

If you have a table
CREATE TABLE Country (
CountryId UNIQUEIDENTIFIER
,Abbreviation VARCHAR(10)
,Name VARCHAR(100)
)
And a User Defined Function
CREATE FUNCTION udfConcatenate(#value1 VARCHAR(4000), #value2 VARCHAR(4000))
RETURNS VARCHAR(8000)
AS
BEGIN
RETURN CONCAT(#value1, #value2)
/* HERE YOU CAN EXECUTE YOU SOTRED PROCEDURE AND RETURN THE RESULT */
END
You can execute
select c.CountryId, dbo.udfConcatenate(c.Abbreviation, c.Name) from country AS C
The User Defined Function can be applied for each row.
So, the User Defined Function execute you Sotred Procedure and return the result.
And, you use the User Defined Function in you SELECT.
EDIT
WHILE way
DECLARE #abb VARCHAR(10)
DECLARE #name VARCHAR(200)
DECLARE cur1 CURSOR FOR
SELECT Abbreviation, Name FROM Country
OPEN cur1
FETCH NEXT FROM cur1 INTO #abb, #name
WHILE ##FETCH_STATUS = 0
BEGIN
SELECT dbo.udfConcatenate(#abb, #name)
/* HERE YOU CAN EXECUTE THE SP AND STORE THE RESULTS IN A TEMP TABLE */
FETCH NEXT FROM cur1 INTO #abb, #name
END
CLOSE cur1
DEALLOCATE cur1
Hope this help you.