Hi Guys, is there a way of nesting a stored procedure within another...i dont mean calling one within another...more like
creating one within another e.g
Create proc TEST1
as
Create proc TEST2
as
select 'this is inner proc'
where by running test one creates test2
i tried this and got an error:
Msg 156, Level 15, State 1, Procedure TEST1, Line 3
Incorrect syntax near the keyword 'proc'.
is this possible if so how, cos i am trying to create a master Proc that creates a DB, and Tables and store procs, hence i want to use it like a Batch file or script.To nest stored procedures, you must create them separately and have one proc call the other -- maybe something like this:
create procedure A
as
print 'This is procedure a.'
go
create procedure B
as
exec A
go
exec B
-- - Output: -
-- This is procedure a.
If you are trying to create a procedure that creates other procedures, you will need to take a different approach. Stored procedures cannot directly create other database objects.
|||You cannot create a stored procedure from within a stored procedure.
You can create a T-SQL script file, and then execute that script file from the command line using OSQL.exe or SQLCommand.exe
Refer to Books Online for OSQL utility, or SQLCommand.
|||Thanks Kent yeah i do now this form of nesting but its not suitable as i am not calling a proc from a proc|||thanks Arnie, yes that was my second option to basically i wanted a stored proc to create a database i could pass parameters for the dbase name and a time stamp and then create stored procs, tables and inserts. but i guess i can do it 2 step : 1 proc i script
ta.
|||One thing to remember is that when using scripts, each use of 'GO' will clear all variables. You may have to re-establish them for the next object.
Sometimes, from the stored procedure, I have loaded a [Name-Value] table with input parameter values that will be used as variables in the script file. The values can be pulled whenever needed.
|||>> thanks Arnie, yes that was my second option to basically i wanted a stored proc to create a database i could pass parameters for the dbase name and a time stamp and then create stored procs, tables and inserts. but i guess i can do it 2 step : 1 proc i script
You would have to create the SPs in the newly created database so your SP create statements couldn't be in-line anyway.
Usually I do this via osql or just concatenated scripts.
|||One other option would be to use dynamic sql to create the procedure. The code below in option 1 creates a permanent procedure that is then executed. The code in option 2 creates a temporary stored procedure that is then executed. Temporary procedures are nice when the task you are executing doesn't need to be permanent. HTH.
-Chris
--Option 1
create procedure myProc1 as
BEGIN
EXEC ('CREATE PROCEDURE myProc2 AS select getdate()')
exec myProc2
END;
GO
EXEC myProc1
--Option 2
create procedure myProc1 as
BEGIN
EXEC ('CREATE PROCEDURE #myProc2 AS select getdate()')
exec #myProc2
END;
GO
EXEC myProc1
|||Why Not..! Yes you can create... But it is bit different....
You have to use the procedure numbers...
The main storedproc will be visible to world rest will be hidden.
You can call them from your main proc / externally..
Example:
Code Snippet
Create proc MyGroupedProc
(
@.Param as int
)
as
Begin
Exec MyGroupedProc;2 @.Param
End
Go
Create Proc MyGroupedProc;2
(
@.Param as int
)
as
Begin
Print 'This is Inner Proc [2]'
Select @.Param as [@. 2]
Exec MyGroupedProc;3 @.param
End
Go
Create Proc MyGroupedProc;3
(
@.Param as int
)
as
Begin
Print 'This is Inner Proc [3]'
Select @.Param as [@. 3]
End
Go
ExecMyGroupedProc 1
Select * from Sysobjects Where Name Like 'MyGroupedProc%' --It only list the Main Proc not other 2
ExecMyGroupedProc;2 1 --You can execute the hidden stored proc directly
