A database management system , or DBMS, gives the user access to their data and helps them transform the raw data into information. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages of 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 in the commercial world.
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. MySQL is also Open Source which means that it s possible for everyone to use and modify its code.