I will collect here patterns, reference guides, best practices, how-to instructions etc that I personally use and would recommend for other developers.
If you have any questions, article ideas or other feedback, feel free to comment under article or e-mail me directly: jemm (at) iki.fi 
Latest updates:
- 11.1.2008: Databases / How-To: Using SQL Server 2005’s OUTPUT to return generated identity
- 23.11.2007: Databases / How-To: Common Data Patterns with LINQ to SQL
- 21.11.2007: Databases / Best Practices: Database Connections
