Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Sort the generic definitions from the primary key-based definitions of 2NF and 3NF. Give a detailed example to support your claim.
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- As an alternative to a reactive standard, please identify and explain the benefits and drawbacks of an anticipatory standard.arrow_forwardHow is dynamic scoping utilised, and how can it be optimised?arrow_forwardClearly define the meaning of two types of relationships in the context of a UML class diagram: aggregation and generalisation, and provide examples.arrow_forward
- Investigate the benefits and drawbacks of snowflake and star schemas. Which is less normalized than the other?arrow_forwardDefine metastability.arrow_forward2NF and 3NF are defined differently by the main key definitions than they are by the generic definitions. Give a specific example to support your claim.arrow_forward
- Compare and contrast the general definitions of 2NF and 3NF with the definitions based on the main keys. Please illustrate your point with an example.arrow_forwardDo some research on the advantages and disadvantages of snow-flake and star schemas. Which one is less normalized than the other one?arrow_forwardExplain in detail the meaning of the terms "aggregation" and "generalisation" as they relate to two different kinds of connections in a UML class diagram.arrow_forward
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