Why should I use document based database instead of relational database?

Probably you shouldn’t 🙂 The second most obvious answer is you should use it if your data isn’t relational. This usually manifests itself in having no easy way to describe your data as a set of columns. A good example is a database where you actually store paper documents, e.g. by scanning office mail. The … Read more

Storing time-series data, relational or non?

Definitely Relational. Unlimited flexibility and expansion. Two corrections, both in concept and application, followed by an elevation. Correction It is not “filtering out the un-needed data”; it is selecting only the needed data. Yes, of course, if you have an Index to support the columns identified in the WHERE clause, it is very fast, and … Read more