This is like the classic advice on optimization. The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for expe

This is like the classic advice on optimization. The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet. It is because I know what a database actually does for me, and because I've had to write parts of that for myself, that I deeply understand why I don't want to write one. And why I want to push those problems to a database if I can. Of course you should ignore my advice if you're named Jeff Dean. Look through https://research.google/people/jeff/ https://research.google/people/jeff/. Among his other projects, look at BigTable, LevelDB and Spanner. All are databases, implemented for good reasons.