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[Database Modeling] Relational Model (2)

3. 12 Rules of Relational Database suggested by E.F.CODD (1)Rule 0 (Basic Rule)A system must be qualified for a "relational model" not only as "database", but also management system". To be qualified for an RDBMS (Relational Database Management System), the system must use its relational method for ...

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[Database Modeling] Relational Model (1)

DefinitionThe relational model is an orderly, predictable, and (for the most part) intuitive approach to perceiving, organizing, and manipulating business data. As such, the relational model is a template for how data appear to a user, how a user performs operations on the data, and how the data beh...

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