# Blog

- [CASE… WHEN… ELSE… END](/case-when-else-end) — Case… When.. Else… End maybe one of the most used SQL statements. Did you know you could use CASE with aggregate functions?
- [What is Redis? And when you should use it](/what-is-redis-and-when-you-should-use-it) — In this article, we are going to talk about Redis, an open-source, in-memory, key-value NoSQL data store that you should know about and when you should use it.