Question

Simple question, as the title suggests:

What is the syntax to drop a Stored Procedure (SP) in SQL Server 2000, by first checking that the SP exists?

Please provide the full code.

Was it helpful?

Solution

Microsoft recommended using the object_id() function, like so:

IF EXISTS (select * from dbo.sysobjects where id = object_id(N'[dbo].[YourProcedure]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
DROP PROCEDURE [dbo].[YourProcedure]
GO

.
object_id() helps resolve owner conflicts. If you do
SELECT name FROM sysobjects WHERE name = 'my_procedure' , you may see many different procedures with the same name -- all for different owners.

But, SELECT * FROM sysobjects WHERE id = object_id(N'[my_procedure]') will only show you the one for the current owner/user, if more than one procedure by that name exists.

Still, always specify the object owner (default is dbo). Not only does this avoid nasty side-effects, it's a little faster too.

OTHER TIPS

A slightly simpler method without going to system tables:

IF OBJECT_ID('my_procedure') IS NOT NULL DROP PROCEDURE my_procedure
GO

Not for SQL Server 2000, but starting with SQL Server 2016, you can use the IF EXISTS syntax:

DROP PROCEDURE IF EXISTS [sp_ProcName]

Like this:

IF EXISTS (SELECT name FROM sysobjects WHERE name = 'my_procedure' AND type = 'P')
DROP PROCEDURE my_procedure GO

Hope that helps!

You can do the following if you want to remove multiple Procedures. NB: This syntax works on SQL Server 2016 and later

USE [Database_name]
GO

BEGIN 
DROP PROCEDURE IF EXISTS    'my_procedure1',
                            'my_procedure2',
                            'my_procedure3',
                            'my_procedure4',
                            'my_procedure5',
END
    

In SQL SERVER 2008, if you want to drop a stored procedure just write the below command....

DROP PROC Procedure_name
DROP PROC dbo.spInsertUser

Hope it helps..

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