Once you get Oracle 11G there is a built-in PIVOT feature. Prior to that, you are restricted to using CASE (or DECODE) expressions. I have an article on how to automate doing that on my blog.
Advice Using Pivot Table in Oracle
Once you get Oracle 11G there is a built-in PIVOT feature. Prior to that, you are restricted to using CASE (or DECODE) expressions. I have an article on how to automate doing that on my blog.