I have been using the Oracle Developer Tools for quite some time now but I admit I have not used those tools quite extensively. I think it's about time I should take those tools seriously.

Oracle has just published a developer's guide for the .NET developers who want to use the Oracle Developers tools for Visual Studio 2005 and Visual Studio 2008. It's called Oracle Database 2 Day + .NET Developer's Guide. Download the PDF version here and browse the HTML version here.

I also found the following guides which I find very useful as an SQL Server developer.

Oracle Database 2 Day Developer's Guide - PDF Version - HTML Version

Oracle Database 2 Day DBA – PDF Version – HTML Version

For developers who have not worked with Oracle PL-SQL before, I would suggest to read the 2 Day Developer's Guide first to get some basic understanding about PL-SQL, its constructs, etc and then read the Oracle .NET Developer's Guide.

All of the Oracle 11g books can be found here.

For those who are still working with Oracle 10g, see the books here.