Database used in Android OS

Android apps use SQLite relational database to store information like contacts, events, tasks and application specific data. SQLite database engine is a self-contained transactional database engine that requires no seperate database server process. SQLite is an opensource database actively developed by a large set of community and sponsers like Oracle, Symbian, Mozilla, Adobe, Bloomberg.

Some of the well-known users of SQLite DB are:

• Apple
• IPhone
•  IPod touch 
• ITunes software 
• Google
• Android OS
• Google Gears 
• Crome Web Browser

In SQLite, the database is a simple disk file and all the data structures of relational database like tables, indexes, views are with in this file.