A Tiny Intro to Database Systems

Here is a short summary of DBMS : database management systems.

Part of the motivation behind those little chapters is described in another blog post here.

If you would like to read those in a nicely formatted PDF or if you have any questions / suggestions / requests, feel free to send me a tweet @dandancrisan.

 
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Now read this

Intro to Database Systems - Part 4 & 5 : Relational Algebra

Let’s start by understanding what relational algebra is: it is a query language (not a programming language) takes instances of relations as input (basically rows from a table, also called tuples) yields instances of relations as output... Continue →