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What are two special events?
The two special events are as "entry" and "exit". Any action which is marked as linked to entry event is executed whenever given state is entered via transition. The action associated with exit event is executed every time the state is left via transition.
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
explain normalisation
What is a view in SQL? When can views be updated? A view is a virtual table which consists of columns from one or more tables. Through it is same to a table; it is stored in
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
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Distributed Database Management System
Critically explained the benefits and limitations of different database technologies with proper examples
What are the advantages of creating a table from existing table?
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Complete replication: It implies maintaining of a whole copy of the database at every site. Thus, the reliability & availability and performance for query response are maximized.
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