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(a) Why did SAP introduce the extended star schema?
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
Explain the concept of deadlock Yes. It can direct to deadlock. Suppose that a batch of frames arrived correctly and were accepted. Then receiver will advance its window. Now s
What is Natural Language Interfaces? Natural Language Interfaces - These interfaces accept requests written within English or a few other language and attempt to "understand" t
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Differance between procedural and non procedural DML? Procedural and non procedural DML Procedural DML exactly what data is require and how to obtain those data. Non procedural
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
What is the State Machine Engine The straightest approach to implement control is to have any way of explicitly representing and executing state machines. With the help of thi
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
What is called mirroring? The simplest approach to introducing redundancy is to duplicate each disk. This method is called mirroring or shadowing.
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