Failure controlling methods, Database Management System

Assignment Help:

Failure Controlling Methods:Failures can be handled using different recovery methods that are talk about later in the unit. But the first question is doing we really require recovery techniques as a failure control mechanism?  The recovery methods are somewhat expensive both in terms of memory space and in time for small systems.  In such a case it is more useful to better avoid the failure by some checks instead of deploying recovery method to make database consistent.  Also, recovery from failure includes manpower that can be used in some other productive work if failure can be avoided.  It is, thus, main to find out some general precautions that help in controlling failure. Some of these precautions might be:

  • Having a better secondary storage system like RAID.
  • Having a regulated power supply.
  • Taking periodic backup of database states and keeping track of transactions after every recorded state.
  • setting important integrity checks in the databases as well as user interfaces.
  • Properly testing the transaction programs prior to use etc.

Though, it may be noted that if the database system is significant it must use a DBMS that is suitably equipped with recovery measures.

 

 


Related Discussions:- Failure controlling methods

Draw an er diagram with primary key for a farm, Draw an ER diagram that rep...

Draw an ER diagram that represents the information described below. Show all entity sets, relationship sets, primary keys, and the mapping cardinality of the relationship sets.

Discuss the types of integrity constraints with example, Discuss the types ...

Discuss the types of integrity constraints in which must be checked for the update operations - Insert and Delete. Give examples. Insert operation can violet any of the subse

Explain concurrency control, Explain concurrency control? Concurrency ...

Explain concurrency control? Concurrency control Oracles multiversion concurrency control varies from the concurrency mechanism used by some other data base vendors. Read

Hashing, how to implement mid square hashing?

how to implement mid square hashing?

Data replication, Data Replication "If a relation R has its copies kept...

Data Replication "If a relation R has its copies kept at two or more sites, then it is considered replicated". But why do we replicate a relation? There are several advan

When is a transaction rolled back, When is a transaction rolled back? A...

When is a transaction rolled back? Any changes that the aborted transaction made to the database must be uncompleted. While the changes caused by an aborted transaction have be

Database errors, Database Errors: An error is said to have occurred if the ...

Database Errors: An error is said to have occurred if the implementation of a command to manipulate the database cannot be successfully finished either due to inconsistent data or

Dbms built for online transaction processing, Problem: A DBMS built for...

Problem: A DBMS built for Online Transaction Processing (OLTP) is usually regarded as unsuitable for data warehousing. Each system is designed with a different set of requireme

Log, what is the need of a log in dbms

what is the need of a log in dbms

Write the syntax of creating an index, Write the syntax of creating an INDE...

Write the syntax of creating an INDEX ? Syntax of Creating an Index: CREATE [BITMAP] [UNIQUE] INDEX ON ( [, ] . . .);

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd