How to delete database, error 5030 database can't be locked

Question

I am trying to delete an existing database in SQL Server 2005. My first attempt produced the following error:

5030: The database could not be exclusively

Answer 1

A production server in which so many connections use the database yet you want to drop it? :)

None the less, how to kick out everybody from the database:

USE [dbname];
ALTER DATABASE [dbname] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;

Then drop the database:

USE [master];
DROP DATABASE [dbname];

There is still a very small window of opportunity between the USE [master]; and DROP DATABASE ... where some other connection can grab the 1 single allowed lock on the database, but it usually not worth working around that.