DZone Database Zone
When and Why I Use an In-Memory Database or a Traditional Database
In this article, I’d like to talk about when I use an in-memory database, when I prefer a traditional DBMS, and why.
When I need to decide which DBMS to use — in-memory (let’s call it IMDB) or traditional (I’ll be calling it RDBMS) — I usually make a choice based on the type of storage where my data is going to be kept. I divide all the options into three groups: RAM, solid-state drive or flash memory (SSD), and hard disk drive (HDD). First, I pick a type (or types) of storage to use and then, I start thinking about what database (or databases) I want to have on top of that.
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