ACCT2000 Chapter Notes - Chapter 4: Database, Online Analytical Processing, Data Redundancy

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A database is a set of interrelated, centrally coordinated data files that are stored with as little data redundancy as possible. A database management system (dbms) is the program that manages and controls the data and the interfaces between the data and the application programs that use the data stored in the database. A database system is the database, the dbms and the application programs that access the database through the dbms. A database administrator is the person responsible for coordinating, controlling and managing the database. A data warehouse is a very large database containing detailed and summarised data for a number of years that are used for analysis rather than transaction processing. Business intelligence involves analysing large amounts of data for strategic decision making. Online analytical processing (olap) is using queries to investigate hypothesised relationships among data. Data (cid:373)i(cid:374)i(cid:374)g is usi(cid:374)g sophisti(cid:272)ated statisti(cid:272)al a(cid:374)alysis to (cid:862)dis(cid:272)o(cid:448)er(cid:863) u(cid:374)hypothesised relationships in the data.

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