CODEWITHSUNDEEP
sqlsql-server-2005stored-proceduresselect
David Bonnici
David Bonnici

Reputation: 6747

Execute a Stored Procedure in a SELECT statement

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?

Upvotes: 6

Views: 73229

Answers (5)

Nilesh Umaretiya
Nilesh Umaretiya

Reputation: 786

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

Upvotes: 0

Dnyaneshwar Pawar
Dnyaneshwar Pawar

Reputation: 81

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)

Upvotes: 3

David M
David M

Reputation: 72870

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.

Upvotes: 13

Mehrdad Afshari
Mehrdad Afshari

Reputation: 421988

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.

Upvotes: 2

vincentb
vincentb

Reputation:

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;

Upvotes: 1

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