Fichas
Three-level ANSI SPARC architecture
Fichas del conjunto (6)
- 1What are the three tiers called?1. External
2. Conceptual
3. Internal - 2What is the objective of this architecture?Separate each users view of the database from the way the database is physically represented
- 3What is the external level?This is the users view of the database
- 4What is the conceptual level?This is the community view of the database. It also describes what data is stored in the database and the relationships among the data
- 5What is the internal level?The physical representation of the database on the computer. This describes how the data is stored in the database.
- 6What is a database schema?An overall description of the database
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- (Database Environment) Database Systems Fichas sobre Three-level ANSI SPARC architecture, creado por Robin Lee-Delisle el 19/07/2017.
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- Robin Lee-Delisle
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