calling a Stored Procedure within a IN clause in SQL Server?

Question

Is it possible to call a stored procedure within a IN clause?

Select field0, field2 FROM Table
WHERE field0 in (exec storedproc)

The reason for stored procedure is because of the complexity of it

Answer 1

You could have to use OpenRowset to achieve this.

Select Field0, Field2 From Table
Where Field0 in (
                SELECT Field0 FROM OPENROWSET('SQLNCLI', 
                             'Server=SERVERNAME;Trusted_Connection=yes;',
                            'EXEC StoredProc')
                )

In order to do this the following options must be enabled on the server:

sp_configure 'Show Advanced Options', 1
GO
RECONFIGURE
GO
sp_configure 'Ad Hoc Distributed Queries', 1
GO
RECONFIGURE
GO

If it isn't possible to change these settings then another option, as discussed with Martin in the comments, is to populate a temporary table.

eg

declare @t table
(
Field0 int,
Field1 varchar(100)
...
)

Insert Into @t
Exec storedProcedure

Select Field0, Field2 From Table
Where Field0 in (
                SELECT Field0 FROM @t
                )

To insert the results of the stored procedure to a temporary table the definition of the temporary table must match the results of the stored procedure exactly.

Answer 2

Stored procedure cannot be used for such case. But, review possibility to use table-value function that are correct as argument of IN statment

Answer 3

You can't use a stored proc. You need to use a function that returns a table. For example:

CREATE FUNCTION myFunction(@arg varchar(30))
RETURNS @myTable table(Value INT)
AS
BEGIN
    insert into @myTable(Value) values (1)       
    RETURN
END

Now you can run the function as part of your query:

Select field0, field2 FROM Table
WHERE field0 in (select Value from myFunction('arg'))