codd 0,1

codd 0,1 - CODDs RULE 0 & 1 Arun Kalpana Radhika...

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Arun Kalpana Radhika Sudhamsh Subin
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Codd’s Rules and Relational Database Theory proposed by Dr. E.F. Codd in a 1970 paper entitled ‘ A Relational Model of Data for Large Shared Data Banks. A relational database is more than just data organized into related tables The relational database model is based firmly in the mathematical theory of relational algebra and calculus
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Later Dr. Codd clarified his model by defining twelve rules ( Codd’s Rules ) that a database management system (DBMS) must meet in order to be considered a relational database In practice, many database products are considered 'relational' even if they do not strictly adhere to all 12 rules A summary of Dr. Codd’s rules 0 &1 is presented below
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Rule 0 – Foundation Rule For any system that is advertised as, or claimed to be a relational database management system, that system must be able to manage databases entirely through its relational capabilities
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This note was uploaded on 07/15/2011 for the course ECO 2023 taught by Professor Mr.raza during the Summer '10 term at FAU.

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codd 0,1 - CODDs RULE 0 & 1 Arun Kalpana Radhika...

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