What is the importance of schema in sql server?

Question

What is the importance of schema in sql server?

Where this schema help me? Is it important for security reasons?

Answer 1

They partition your database to make management easier. This is from MSDN:

A schema is now a distinct namespace that exists independently of the database user who created it. In other words, a schema is simply a container of objects. A schema can be owned by any user, and its ownership is transferable.

Here's the page that came from: http://msdn.microsoft.com/en-us/library/ms190387.aspx

In relation to security it makes it simpler to assign permissions as you can grant someone access to a schema without exposing your entire database to them.