Databases

A database is used to store data.

A simple example is a phone book.  The following information can be stored in a phone book:

  • First Name
  • Surname
  • Address
  • Home Number
  • Mobile Number

Also note that this information remains there until you change it.  In computing terms this is called persistence.

First NameSurnameAddressHome NumberMobile Number
JohnSmith123 Bath Road0207123456707911223445
SaraJones32 Kew Avenue0207133456707916666645

In the example above, we have 2 rows of data.  In database terms, a row of data is known as a record.

Database