The ANSI-SPARCArchitectureDBMS

Institution Jomo Kenyatta University of Science and Technology
Course Information Technol...
Year 2nd Year
Semester Unknown
Posted By Jeff Odhiambo
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Description

The architecture of most commercial DBMSs is based on the ANSI-SPARC architecture (1975). Itwasdevised by American National Standards Institute (ANSI) and Standards Planning AndRequirementsCommittee (SPARC). The ANSI-SPARC model of a database identifies three distinct levels atwhichdata items can be described. These levels form a three-level architecture comprising of an external level,aconceptual level, and an internallevel
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