One complaint that I have with SQL databases that you don't often hear elsewhere is that they are very complex. People often use them where a much simpler solu

One complaint that I have with SQL databases that you don't often hear elsewhere is that they are very complex. People often use them where a much simpler solution would suffice because they are what people are used to using. All else equal, we should choose the simple solution over the complex one, because it is less likely to fail and easier to extend.