Databasics
A database is a fundamental building block of IT.
It is an essential element of any website using a CMS system - which is a framework of directions instructing a database to place content in the right locations, and according to the designers rules and relationships.
The database stores every text information variable, and pointers to graphics and media files. An effective database is key to online success.
SQL (Structured Query Language) is the de-facto lingua franca of modern database schemes, and whilst there are dialect differences between MySQL, MS SQL, Postgres, Oracle and others, the fundamentals remain thankfully the same.