This article is supposed to help the people who faced sql server the first time. If you are already experienced in writing simple t-sql queries you will probably find this article useless and boring. But if you have only a vague understanding about what sql actually is then this article is written exactly for you.

This is step by step manual how to update SQL 2005 cluster to service pack 3. Microsoft SQL Server service pack are all cluster aware (which means they automaticaly detect clustered instances and update clustered features of the sql server) but anyway you need to know all the details when you are installing service pack to a sql cluster.