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How is concurrency identified?
Concurrency in objects can be identified by the way they alter their state. Current objects can change their state independently. Aggregation implies concurrency in system.
What are the several forms of identity? a) Value b) Name c) Built-in
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
Question 1: (a) Explain the legal meaning of :- (i) Computer Service Person (ii) Data holding (b) Explain how the law ensures Data protection and Security. Qu
Compare wait-die deadlock prevention scheme with wait-wound scheme Ans: Wait-Die Scheme a) Based upon a nonpreemptive technique. b) If Pi requests a resource present
Regional Gardens has many nurseries, including Wagga Wagga, Bathurst, Albury, Orange, and Dubbo. Each nursery is known by its campus code, eg WW, B, A, O and D respectively. Additi
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FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
DML Precompiler All the DBMS have two basic sets of Languages - Data Definition Language (DDL) that have the set of commands needed to define the format of the data that is b
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
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