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Explain the disadvantages of using DBMS
There could be a few disadvantages of using DBMS.
As DBMS requires computers, we have to invest a good amount in acquiring the hardware, software, installation facilities and training of users.
We have to keep regular backups because a failure can happen any time. Taking backup is a lengthy process and the computer system cannot perform any other job at this time.
Whereas data security system is a boon for using DBMS, it must be very robust. If someone can bypass the security system then the database would become open to any type of mishandling
Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica
sy bcs project of hospital managment system
We have a buildup of payments that need to be processed. You will need:- To prepare customer account on our site Process payment (you must have working Paypal account to d
Explain the Strategy of Database Planning ?
Compute the closure (F+) for the following set of the functional dependencies defined on R(a,b,c,d), where F - {c→ a, ab → d, a → b, d → c}, i.e. what are all of the FDs implied b
This project requires you to create a database design. Your design will be documented in a set of Entity-Relationship diagrams. Draw a set of Entity-Relationship diagrams to mode
Physical Records These are the records that are stored in the secondary storage devices. For the database relation, physical records are the group of fields kept in adjacent me
What is Distributed system ? Distributed System - A distributed system consists of a number of processing parts in which are interconnected through a computer network and in
What Count function return in SQL? Count function within SQL returns the number of values. (Count function counts all the not null values in the exact column. If we need to cou
Aggregation Aggregation is stronger form of association. It represents the "has-a" or "part-of" relationship. An aggregation association depicts a complex object which is comp
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