Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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You might be able to think of situations where using range controls or null value controls will help to improve data integrity, and you might also be able to think of situations where using them will harm data integrity.
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- What are the distinctions between the two categories of integrity constraints?arrow_forwardSerious problems would arise if a database's referential integrity was compromised. Tell me about some of the most frequent faults you tend to make.arrow_forwardIn what way does the choice of a data typefor a field help to control the integrity ofthat field?arrow_forward
- The loss of referential integrity in a database might have severe consequences. Where do you go wrong the most often?arrow_forwardWhat would happen if there was a breach in the referential integrity of a database? Where do you usually go wrong?arrow_forwardIs it possible to foresee circumstances in which default values enhance data integrity and others in which they impede it?arrow_forward
- What are the effects of an attack on a database's referential integrity? What kinds of mistakes could happen?arrow_forwardUsing a normalised version of the Index metadata relation could have a negative impact on performance.arrow_forwardWhat distinguishes the two kinds of integrity constraints?arrow_forward
- What are the most common mistakes that can happen if your database's referential integrity is not enforced?arrow_forwardIn the event that database referential integrity is not enforced, what would happen? What are the most likely blunders to make?arrow_forwardIn what circumstances would utilizing default values promote data integrity, and in what circumstances will doing so reduce it?arrow_forward
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