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mahesh, Database Management System
Posted Date: 12/19/2012 6:16:56 AM | Location : USA
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Explain the concept of deadlock, Question: In a multi-user database env...
Question: In a multi-user database environment, locking mechanisms can be used to solve the three basic problems of concurrency. On the other hand, however, locking may also le
multiple-mode locks, Multiple-mode locks : It offers two locks: exclusive ...
Multiple-mode locks : It offers two locks: exclusive locks and shared locks. But why do we require these two locks? There are a lot of transactions in the database system that neve
Improved performance, Improved performance: As the data is located near the...
Improved performance: As the data is located near the site of its demand, and given the inherent parallelism because of multiple copies, speed of database access may be good for di
Participation constraints, The participation Constraints shows whether the ...
The participation Constraints shows whether the existence of an entity depends on its being associated to another entity by the relationship type. There are two kinds of participat
Database, A database has been designed for this beauty parlour in order for...
A database has been designed for this beauty parlour in order for the staff to manage specific things such as bookings made by clients, payments, staff availability, level of exper
Join relation of two tuples, Consider the join of a relation R with relatio...
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz
What is the disadvantage of a call by reference, What is the disadvantage o...
What is the disadvantage of a call by reference? During a call by reference damage or loss of data is not restricted to the subroutine, but will instantly lead to alters to th
DBMS , need a DBMS system on any data for assignment.
need a DBMS system on any data for assignment.
Max. no. of structures in a table or structure, What is the max. no. Of str...
What is the max. no. Of structures that can be included in a table or structure. Nine.
Types of database, what are the type of the database
what are the type of the database
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