Synonyms and indexes, Database Management System

Assignment Help:

Synonyms and Indexes

Some of the essential properties of indexes are:

  • An Index is a schema Object
  • Indexes can be formed explicitly or automatically
  • Indexes are mainly used to speed up the retrieval of rows
  • Indexes are physically and logically independent of the table. It means they can be formed or dropped at any time and have no cause on the base tables or other indexes.
  • Though, when a table is dropped corresponding indexes are also dropped.

 


Related Discussions:- Synonyms and indexes

Transactions and concurrency management, Transactions And Concurrency Manag...

Transactions And Concurrency Management  Introduction One of the main benefits of storing data in an integrated repository or a database is to permit sharing of it betwee

Information infrasture, what benefit can a company gain by managing its own...

what benefit can a company gain by managing its own infrasture and services

Recovery techniques, Recovery Techniques: After Reading the types of failur...

Recovery Techniques: After Reading the types of failures and database errors, let us talk about how to recover from the failures. Recovery can be complete using/restoring the previ

Type of views-data control, Type of views :  Simple views and Difficult ...

Type of views :  Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One

List some security violations, List some security violations (or) name any ...

List some security violations (or) name any forms of malicious access. A) Unauthorized reading of data B) Unauthorized modification of data C) Unauthorized destruction of

Frequecy count, how to calculate frequency count of algorithm

how to calculate frequency count of algorithm

Explain the steps for reduction of e-r model, Explain the steps for reducti...

Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e

When is update_statistics command used, When is UPDATE_STATISTICS command u...

When is UPDATE_STATISTICS command used? - When processing of large data is done, this command is used. - Whenever large number of modification, deletions or copy takes place

What are the different kinds of database end users, What are the different ...

What are the different kinds of database end users? Discuss the major activities of each? End-Users - End-users are the people whose jobs need access to the database for que

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