Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Analyze the variations between the generic definitions of 2NF and 3NF and the main key-based definitions. Explain your thinking by providing an example?
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- Generic definitions based on a key are distinct from 2NF and 3NF definitions. To prove your point, please provide an example.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_forwardCompare the major key-based 2NF and 3NF definitions to the generic ones. Provide an example.arrow_forward
- Show that you comprehend what is meant by "normalization." Please include instances of 1NF, 2NF, 3NF, and BCF as well.arrow_forwardIn this comparison, I want you to point out the key differences between the UML and EER models. How far along its development path is the UML model?arrow_forwardDistinguish between the main key-based definitions of 2NF and 3NF and the generic definitions. Give a concrete illustration to back up the claims you've made in your argument.arrow_forward
- The important definitions vary from generic definitions for 2NF and 3NF. Provide evidence.arrow_forwardJust what is dynamic scoping, and when would you want to utilize it? How does dynamic scoping effect performance?arrow_forwardHow is dynamic scoping used, and what can be done to improve its efficiency?arrow_forward
- Describe the three extensions that are commonly included in the various versions of EBNF ?arrow_forwardDiscuss how the major key-based definitions of 2NF and 3NF differ from the generic definitions of 2NF and 3NF. Give an example to support your response.arrow_forwardPlease explain what dynamic scoping is, when it's used, and how it might be optimized for improved performance.arrow_forward
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