A database is a structured collection of records or data that is stored in a computer system. The structure is achieved by organizing the data according to a database model. The model in most common use today is the relational model. Other models such as the hierarchical model and the network model use a more explicit representation of relationships.

An organized body of related information
A database is a structured collection of records or data. A computer database relies upon software to organize the storage of data.

Data stored in a computer in such a way that a computer program can easily retrieve and manipulate the data. Popular databases are MySQL, SQL, PostgreSQL and Microsoft Access.