What are the top reasons that make a Database server crash?
I'd like to know the most common reasons that may cause a Database Server to crash and/or become unresponsive and/or abort.

I've had this problem some times now and I'd like to know what are some common mistakes that(mostly unexperienced) developers who write the queries and the scripts that access the database server can run into.

I'm not really looking at things from a DBA's perspective, am rather hoping I can have a simple list with perhaps some 'good practices' for developers who have to work with databases on a daily basis (like me).
What are the top reasons that make a Database server crash?
===

I'd like to know the most common reasons that may cause a Database Server to crash and/or become unresponsive and/or abort.

I've had this problem some times now and I'd like to know what are some common mistakes that(mostly unexperienced) developers who write the queries and the scripts that access the database server can run into.

I'm not really looking at things from a DBA's perspective, am rather hoping I can have a simple list with perhaps some 'good practices' for developers who have to work with databases on a daily basis (like me).