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design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
Add generation capabilities and/or tailor the built-in functionality of generator. This enables you to produce "all" the test data for the MySQL tables you produced in the previous
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
explain in detail about crash recovery
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
what is un ordered and ordered file managment?
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
Which database level is closest to the users? External database level is closest to the users.
(a) Why did SAP introduce the extended star schema?
Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include
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