A common-sense list of 10 or so dos and don’ts of being a DBA that I have realized over the years. It includes rules such as: * When someone says “just test that on the production database”, don’t. * Debugging and optimizing SQL is a fun and easy way to impress people. * Monitor everything that could possibly go wrong so you can fix problems before anyone else notices. * Insist on chocolate as payment for helping developers in case they believe you.