I have just attended an excellent presentation on Git, delivered by Scott Chacon , a well-known Git expert. The presentation was excellent: practical recommendations, without marketing, without glossing over problems. I have been using Subversion to store my SQL since at least 2006, probably earlier, 2005-ish. I am quite happy with it. ...

What if I told you to take your latest production backup, restore it on a different machine and try using the database? Are you comfortable with that task? Do you think it will work? When was the last time you tested your backups? Do you even have a backup? Why am I asking all these things? Because your data is as good as your last good backup. ...