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Chapter 10a review questions
What is Cardinality Ratio? Cardinality Ratios - The cardinality ratios for relationship kinds specifies the maximum number of relationship instances in which an entity can pa
These are interactive interfaces, graphical that hide the difficulty of the DBMS and query language behind an intuitive, simple to understand, and convenient interface. This permit
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
What is an ERD?
Consistency: This property makes sure that a complete transaction implementation takes a database from one consistent state to another consistent state. If the transaction fails e
Performance of Various Concurrency Control Mechanisms
why we fregment at all?
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
A constraint named less_than_20 was defined on the field date_of_birth of table student. Delete this constraint. ALTER TABLE student DROP CONSTRAINT less_than_20;
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