The ANSI-SPARCArchitectureDBMS
| Institution | Jomo Kenyatta University of Science and Technology |
| Course | Information Technol... |
| Year | 2nd Year |
| Semester | Unknown |
| Posted By | Jeff Odhiambo |
| File Type | docx |
| Pages | |
| File Size | 136.03 KB |
| Views | 2110 |
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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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