What is Database ? A database is an organised collection of data. The main purpose of database is to operate large amount of information by storing, retrieving and managing. There are many database available like MySQL, Oracle, Mango DB, Informix, Postgre, SQL Server etc.
SQL or Structured Query Language is used to perform operation on the data stored in a database. SQL depends on relational algebra and tuple relational calculus.
The database management system (DBMS) is the software that interacts with end users, applications, and the database itself to capture and analyse the data. The DBMS software additionally encompasses the core facilities provided to administer the database. The sum total of the database, the DBMS and the associated applications can be referred to as a \”database system\”. Often the term \”database\” is also used to loosely refer to any of the DBMS, the database system or an application associated with the database.
in other words Database
- is a systematic collection of data.
- support storage and manipulation of data.
- make data management easy.
An online telephone directory would definitely use database to store data pertaining to people, phone numbers, other contact details, etc.
Your electricity service provider is obviously using a database to manage billing , client related issues, to handle fault data, etc.