How to check if a database exists in SQL Server?

Question

What is the ideal way to check if a database exists on a SQL Server using TSQL? It seems multiple approaches to implement this.

Answer 1

IF EXISTS (SELECT name FROM master.sys.databases WHERE name = N'YourDatabaseName')
  Do your thing...

By the way, this came directly from SQL Server Studio, so if you have access to this tool, I recommend you start playing with the various "Script xxxx AS" functions that are available. Will make your life easier! :)