It is directed at anyone new to Linux, whether they be a computer novice, an experienced UNIX wizard coming to Linux for the first time, or a 'power' Windows user. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility. A database is a structured collection of data. Data refers to the characteristics of people, things, and events.
Relational databases are the most popular type available.
A relational database allows the definition of data structures, storage and retrieval operations and integrity constraints. In such a database the data and relations between them are organised in tables. A table is a collection of records and each record in a table contains the same fields. Certain fields may be designated as keys, which means that searches for specific values of that field will use indexing to speed them up. Oracle - a database specifically designed as an Internet development and deployment platform.