CoderFunda
  • Home
  • About us
    • Contact Us
    • Disclaimer
    • Privacy Policy
    • About us
  • Home
  • Php
  • HTML
  • CSS
  • JavaScript
    • JavaScript
    • Jquery
    • JqueryUI
    • Stock
  • SQL
  • Vue.Js
  • Python
  • Wordpress
  • C++
    • C++
    • C
  • Laravel
    • Laravel
      • Overview
      • Namespaces
      • Middleware
      • Routing
      • Configuration
      • Application Structure
      • Installation
    • Overview
  • DBMS
    • DBMS
      • PL/SQL
      • SQLite
      • MongoDB
      • Cassandra
      • MySQL
      • Oracle
      • CouchDB
      • Neo4j
      • DB2
      • Quiz
    • Overview
  • Entertainment
    • TV Series Update
    • Movie Review
    • Movie Review
  • More
    • Vue. Js
    • Php Question
    • Php Interview Question
    • Laravel Interview Question
    • SQL Interview Question
    • IAS Interview Question
    • PCS Interview Question
    • Technology
    • Other

08 April, 2022

Conflict Serializable Schedule

 Programing Coderfunda     April 08, 2022     RDBMS     No comments   

 

Conflict Serializable Schedule

  • A schedule is called conflict serializability if after swapping of non-conflicting operations, it can transform into a serial schedule.
  • The schedule will be a conflict serializable if it is conflict equivalent to a serial schedule.

Conflicting Operations

The two operations become conflicting if all conditions satisfy:

  1. Both belong to separate transactions.
  2. They have the same data item.
  3. They contain at least one write operation.

Example:

Swapping is possible only if S1 and S2 are logically equal.


DBMS Conflict Serializable Schedule

Here, S1 = S2. That means it is non-conflict.


DBMS Conflict Serializable Schedule

Here, S1 ≠ S2. That means it is conflict.

Conflict Equivalent

In the conflict equivalent, one can be transformed into another by swapping non-conflicting operations. In the given example, S2 is conflict equivalent to S1 (S1 can be converted to S2 by swapping non-conflicting operations).

Two schedules are said to be conflict equivalent if and only if:

  1. They contain the same set of the transaction.
  2. If each pair of conflict operations are ordered in the same way.

Example:


DBMS Conflict Serializable Schedule

Schedule S2 is a serial schedule because, in this, all operations of T1 are performed before starting any operation of T2. Schedule S1 can be transformed into a serial schedule by swapping non-conflicting operations of S1.

After swapping of non-conflict operations, the schedule S1 becomes:

T1T2
Read(A)
Write(A)
Read(B)
Write(B)




Read(A)
Write(A)
Read(B)
Write(B)

Since, S1 is conflict serializable.

  • Share This:  
  •  Facebook
  •  Twitter
  •  Google+
  •  Stumble
  •  Digg
Email ThisBlogThis!Share to XShare to Facebook
Newer Post Older Post Home

0 comments:

Post a Comment

Thanks

Meta

Popular Posts

  • Writing and debugging Eloquent queries with Tinkerwell
    In this article, let's look into the options that you can use with Tinkerwell to write and debug Eloquent queries easier. The post Wr...
  • Sitaare Zameen Par Full Movie Review
     Here’s a  complete Vue.js tutorial for beginners to master level , structured in a progressive and simple way. It covers all essential topi...
  • The token request was rejected by the remote server
    error:invalid_granterror_description:The token request was rejected by the remote server.error_uri: https://documentation.openiddict.com/err...
  • Vue.js Tutorial
      Vue.js Installation Compatibility Check Before going to install and use Vue.js in your project, you should check the compatibility issues....
  • JqueryUI Tutorial
    JqueryUI Tutorial    JqueryUI is the most popular front end frameworks currently. It is sleek, intuitive, and powerful mobile first fr...

Categories

  • Ajax (26)
  • Bootstrap (30)
  • DBMS (42)
  • HTML (12)
  • HTML5 (45)
  • JavaScript (10)
  • Jquery (34)
  • Jquery UI (2)
  • JqueryUI (32)
  • Laravel (1017)
  • Laravel Tutorials (23)
  • Laravel-Question (6)
  • Magento (9)
  • Magento 2 (95)
  • MariaDB (1)
  • MySql Tutorial (2)
  • PHP-Interview-Questions (3)
  • Php Question (13)
  • Python (36)
  • RDBMS (13)
  • SQL Tutorial (79)
  • Vue.js Tutorial (69)
  • Wordpress (150)
  • Wordpress Theme (3)
  • codeigniter (108)
  • oops (4)
  • php (853)

Social Media Links

  • Follow on Twitter
  • Like on Facebook
  • Subscribe on Youtube
  • Follow on Instagram

Pages

  • Home
  • Contact Us
  • Privacy Policy
  • About us

Blog Archive

  • July (4)
  • September (100)
  • August (50)
  • July (56)
  • June (46)
  • May (59)
  • April (50)
  • March (60)
  • February (42)
  • January (53)
  • December (58)
  • November (61)
  • October (39)
  • September (36)
  • August (36)
  • July (34)
  • June (34)
  • May (36)
  • April (29)
  • March (82)
  • February (1)
  • January (8)
  • December (14)
  • November (41)
  • October (13)
  • September (5)
  • August (48)
  • July (9)
  • June (6)
  • May (119)
  • April (259)
  • March (122)
  • February (368)
  • January (33)
  • October (2)
  • July (11)
  • June (29)
  • May (25)
  • April (168)
  • March (93)
  • February (60)
  • January (28)
  • December (195)
  • November (24)
  • October (40)
  • September (55)
  • August (6)
  • July (48)
  • May (2)
  • January (2)
  • July (6)
  • June (6)
  • February (17)
  • January (69)
  • December (122)
  • November (56)
  • October (92)
  • September (76)
  • August (6)

Loading...

Laravel News

Loading...

Copyright © CoderFunda | Powered by Blogger
Design by Coderfunda | Blogger Theme by Coderfunda | Distributed By Coderfunda