Execute a Stored Procedure in a SELECT statement - sql

Question

For an instance I a select statement and it is returning 1000 rows. I need to execute a particular stored procedure for every row the the select statement is returning.
have you got any idea how can I do that?

Answer 1

Construct the EXECUTE statements in your select like this:
SELECT 'EXEC sp_whatever ' + parameter stuff
FROM your_table
Then run the results! Alternatively, paste your results into a spreadsheet package, and use string concatenation to construct the EXEC statements - just create a formula and paste it down the 1,000 rows. I personally prefer the first approach.
To clarify the "parameter stuff", take the example of a stored procedure that takes two int parameters that you want to take from columns you your_table. You'd then have something like this:
SELECT 'EXEC sp_whatever ' + CAST(field1 AS varchar) + ', ' + CAST(field2 AS varchar)
FROM your_table
Not the need to be careful with string fields here - you run the risk of inadvertently exposing yourself to your own SQL injection attack, as with any SQL string concatenation.
I am reading your "for an instance" as "this is a one-off task". If this is a task that needs automating, then one of the other answers may be the right approach.

Answer 2

You can do it like this:
declare #execstatementsbatch nvarchar(max)
select #execstatementsbatch = ''
SELECT #execstatementsbatch = #execstatementsbatch + 'EXEC UpdateQty ' + ItemCode + ', ' + QtyBO + '; '
FROM ITEMSPO
INNER JOIN .....
<some conditions>
exec(#execstatementsbatch)

Answer 3

Disclaimer: I'm not sure if I understand your question correctly.
Assuming you are on SQL Server 2005 upwards, you could create a table-valued user defined function and use the OUTER APPLY operator in your query.

Answer 4

Most RDBMS will let you select rows from stored procedure result sets. Just put your stored procedures in the FROM clause, as you would for common table expressions. For instance:
SELECT sp.ColumnInResultSet, t.BaseTableColumnName
FROM sp_whatever ( Args) sp INNER JOIN BaseTable t ON t.ID = sp.ID;

Answer 5

CREATE PROCEDURE dbo.usp_userwise_columns_value
(
#userid BIGINT
)
AS
BEGIN
DECLARE #maincmd NVARCHAR(max);
DECLARE #columnlist NVARCHAR(max);
DECLARE #columnname VARCHAR(150);
DECLARE #nickname VARCHAR(50);
SET #maincmd = '';
SET #columnname = '';
SET #columnlist = '';
SET #nickname = '';
DECLARE CUR_COLUMNLIST CURSOR FAST_FORWARD
FOR
SELECT columnname , nickname
FROM dbo.v_userwise_columns
WHERE userid = #userid
OPEN CUR_COLUMNLIST
IF ##ERROR <> 0
BEGIN
ROLLBACK
RETURN
END
FETCH NEXT FROM CUR_COLUMNLIST
INTO #columnname, #nickname
WHILE ##FETCH_STATUS = 0
BEGIN
SET #columnlist = #columnlist + #columnname + ','
FETCH NEXT FROM CUR_COLUMNLIST
INTO #columnname, #nickname
END
CLOSE CUR_COLUMNLIST
DEALLOCATE CUR_COLUMNLIST
IF NOT EXISTS (SELECT * FROM sys.views WHERE name = 'v_userwise_columns_value')
BEGIN
SET #maincmd = 'CREATE VIEW dbo.v_userwise_columns_value AS SELECT sjoid, CONVERT(BIGINT, ' + CONVERT(VARCHAR(10), #userid) + ') as userid , '
+ CHAR(39) + #nickname + CHAR(39) + ' as nickname, '
+ #columnlist + ' compcode FROM dbo.SJOTran '
END
ELSE
BEGIN
SET #maincmd = 'ALTER VIEW dbo.v_userwise_columns_value AS SELECT sjoid, CONVERT(BIGINT, ' + CONVERT(VARCHAR(10), #userid) + ') as userid , '
+ CHAR(39) + #nickname + CHAR(39) + ' as nickname, '
+ #columnlist + ' compcode FROM dbo.SJOTran '
END
--PRINT #maincmd
EXECUTE sp_executesql #maincmd
END
-----------------------------------------------
SELECT * FROM dbo.v_userwise_columns_value