Internet Addiction
database A collection of data stored together as a unit. Databases are useful for storing data and making it available for retrieval. Within the databases, data is organized into different tables. Data Warehouse A separate database that is designed for reporting and querying . The data in a warehouse is derived from the data in the transaction database and can also include data from other sources. Metadata Data that describes the data in a database. It includes the names of tables, columns, and indexes how the data items are used , business definitions, relationships between data, how the data has been processed as it enters the database.