
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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What precisely do integrity restrictions entail?
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- What distinctions exist between the two categories of integrity constraints?arrow_forwardDatabases often make use of stringent two-phase locking. What makes this technique so well-liked?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_forwardWhat distinguishes the two kinds of integrity constraints?arrow_forwardIn what circumstances would utilizing default values promote data integrity, and in what circumstances will doing so reduce it?arrow_forward
- What happens if someone tries to break a database's referential integrity? What types of errors are possible?arrow_forwardDatabases often make use of stringent two-phase locking. What makes this technique so well-liked?arrow_forwardWhat are the potential drawbacks of using long-duration locks in a database?arrow_forward
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