Management and use of database, Database Management System

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Explain Lock-Based protocols, # ???? ..

# ???? ..

Define and differentiate among ordered indexing and hashing, Define and dif...

Define and differentiate between ordered indexing and hashing. Ans: Ordered indexing: To gain fast random access to records in a file, we can make of an index structure. Every

Explain how you can define an object model of a system, Explain how you can...

Explain how you can define an object model of a system. A list of terms that shall be used by end users to describe state and behaviour of objects in system. Different use

Explain saving derived attributes to avoid re-computation, Saving Derived A...

Saving Derived Attributes to Avoid Re-computation As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,

Basic set operation, These are the binary operations; i.e., each is applied...

These are the binary operations; i.e., each is applied to two relations or sets. These two relations can be union compatible excluding in case of Cartesian product. Two relations R

What is the difference between serial and sequential files, What is the dif...

What is the difference between serial and sequential files? How searching is applied on both? Ans: A serial file is one where the records have been stored in the order where

Develop a simple database of student records, In this programming assignmen...

In this programming assignment, you will develop a simple database of student records. Here are the requirements: 1) A student record contains a name and a number. We assume tha

Managing databases, Code an Oracle Database trigger to enforce the constrai...

Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.

Which is an advantage of view, Which is an advantage of view? The Advan...

Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries

Log based recovery, under what condition log based recovery is feasible?

under what condition log based recovery is feasible?

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