October 2015
Intermediate to advanced
374 pages
11h 5m
English
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2 Relational Database Management Systems
The relational data model is based on the concept of storing records of data as rows inside tables. Each row represents an entity of the real world with table columns being attributes (or properties) of interest of these entities. The relational data model has been the predominant data model of database systems for several decades. Relational Database Management Systems (RDBMSs) have been a commercial success since the 1980s. There are powerful systems on the market with lots of functionalities. These systems also fulfill all the basic requirements for database systems as introduced in Section 1.1. In the following sections, we briefly review the main concepts and terminology of the relational data model. ...
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I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.