Download 1. File Systems and Databases

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Transcript
Relational Database Model
– Basic Structure
• RDBMS allows operations in a human logical
environment.
• The relational database is perceived as a
collection of tables.
• Each table consists of a series of row/column
intersections.
• Tables (or relations) are related to each other by
sharing a common entity characteristic.
• The relationship type is often shown in a relational
schema.
• A table yields complete data and structural
independence.
DBMS, Ch1 File Systems and Databases, Hachim Haddouti