How to add “IF NOT EXISTS” to create trigger statement

Question

I am using sql server 2008 R2. More specifically, Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (X64) Apr 2 2010 15:48:46 Copyright (c) Microsoft Corporation Stan

Answer 1

The best way is to check for objects and drop them if they exist before you create them.

Rather then not creating it at all if it exists, I would approach it the other way, drop it if exists and then create.

Normally in long lenghty scripts if you want to update the definition of a trigger you would just simply add this at the end of that script and your trigger definition will be updated.

So the approach should be create the object but drop it if it already exists rather then dont create it at all if it already exists

IF OBJECT_ID ('[Insert_WithdrawalCodes] ', 'TR') IS NOT NULL
   DROP TRIGGER [Insert_WithdrawalCodes];
GO

CREATE TRIGGER .......