The job required that I learn how databases work and relational database theory. It may not sound very fantastic if you think of a database as only a bunch of names and addresses. However, once you understand the importance of the relational database to information management, you will understand just how much the kata resemble the relational database model. Understanding this will shed new light on your understanding of kata, and where they fit into your training regimen. Tables - If you have used Microsoft Excel, you are already familiar with databases to an extent.
Databases are giant warehouses of information.
The information is arranged into what are called tables. A database table consists of rows and columns of data. A set of tables is a database. Sometimes a database is just a single, giant table. Relations - Also important to the concept of kata as a database is the idea of relations.