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Relational Database Model

Comparing and Contrasting the Relational Database Model and OO Model
The relational database model is based upon tables or relations. In this model, the physical implementation of the database is abstracted away from the user. Users query the database using a high-level query language, such as SQL. The relations are made up of columns, which have headings indicating the attribute represented by that column. Tables have key fields, which can be used to identify unique records. Keys relate tables to each other. The rows of the relation are also called tuples, and there is one tuple component for each attribute – or column – in that relation. A relation or table name, along with those relation's attributes, make up the relational schema. Relational Database models are server-centric.
When designing a Relational Database, you must create a table for each entity type, choose or invent a primary key for each table; add foreign keys to represent one-to-many relationships; create......


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Approximate Word Count: 965
Approximate Pages: 4 (250 words per double-spaced page)

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