Thursday, 13 March 2014

Database

Key Terms:

Entity: Something that we store data about in a database
Record: All the data about one item in a database
Attribute: A characteristic of an entity. It becomes a field in a data table
Field: A characteristic of something stored in a database
Indexed sequential file: A sequential file that is accessed using an index, which is a separate file
Flat file database: Database consisting of only one table
Serial file: A file of items one after another
Sequential file: A serial file in order
Schema: Definition of a database
Data dictionary: the stored schema of a databse
DBMS: Data base management system


Definition:

A structured set of data held in a computer, especially one that is accessible in various ways.


What's a database for?

A database is for arranging large amounts of data in an organised fashion.





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