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What is vertical fragmentation?
Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
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What is System R? What are its two major subsystems? System R was intended and developed over a period of 1974-79 at IBM San Jose Research Center. It is a prototype and its pur
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I have a homework assignment due today by midnight. I need help understanding databasse normalization and determining the type of form violation & how to fix the violation.
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
what are the topics in data management
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