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Question 1 What are the advantages of DBMS approach in managing data? Question 2 What are the services provided by a database system Question 3 List and briefly describe
Objectives Define the terms RECOVERY and INTEGRITY; Define Recovery Techniques; Explain Error and Error detection techniques, and Define types of Authorisation.
growing phase and shrinking phase are disjoint, why ?
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
Normal 0 false false false EN-US X-NONE X-NONE
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
What's the difference between a primary key and a unique key? Both primary key and unique key enforces uniqueness of the column on which they are explained. But by default prim
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
what is Mapping Constraints? with examples
data models are being replaced over years. Reasons and why does that happen?
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