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What is the main difference between read-only and update methods?
A read-only method does not affect the values of a variable in an object, whereas an update method may alter the values of the variables
what is physical data structure
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:
What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl
Define the step - Rearranging the Execution Order for Efficiency As we know that algorithm and data structure are closely related to one another, but data structure is conside
explain in detail about time stamp orderting/
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
A basic model of Database Access Control Models of database access control have grown out of previous work on protection in operating systems. Let us talk about one simple mode
What is Thread splitting A thread of control is a path by which a set of state diagrams on that a single object is active at a time. Objects are shared between threads
Explain the challenges before an E-business management.
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
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