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How many types of Views are there?
There are Four types of views:-
Serialisable Schedules: If the processes of two transactions conflict with each other, how to verify that no concurrency related problems have happened? For this, serialisability t
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
Design a gennalization and specialization hierarchy for an automobile sales company
Define physical image of a global relation at a site
Define Partial Key and Primary Key A partial key, also known as discriminator, is the set of attributes which can uniquely identify weak entities that are related to similar o
Explain the two types of participation constraint. 1. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
explaination
Primary Key The primary key is the candidate key that is selected by the database designer as the principal denotes of identifying entities within an entity set. The left candi
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