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What is substitutability?
Any method of a class-say A can equally well be adjured with any object belonging to any subclasses B of A. This characteristic leads to code reuse, as the messages, methods, and functions do not have to be written again for objects of class B.
Critically explained the benefits and limitations of different database technologies with proper examples
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
System Design: An Object Oriented Approach Any software systems always try to change and evolve as technology and business rules evolve. The development of information systems
Creating views with check option : This option limits those updates of data values that cause records to go off the view. The following instance tells this in more detail: Examp
A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE
under what condition log based recovery is feasible?
Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pictori
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