Getting Started with Adobe After Effects - Part 6: Motion Blur


Upload Image Close it
Select File

This blog contains various articles on the SQL Server. Also this blog contains various interview questions on the SQL Server. Through this blog I try to make the learning of SQL Server/ BI and SQL DBA very easy and in a quick time.

Browse by Tags · View All
CodeProject 6
Sql Server 4
Having Clause 3
Interview Questions on sql server 3
SQLServerPediaSyndication 3
Happy New Year 1
Rebuild And Reorganization of Indexes 1
Replication in SQL Server 1
Fragmentation in SQL Server 1
Log Shipping in SQL Server 1

Archive · View All
February 2012 20
December 2012 5
April 2012 4
August 2012 2
November 2010 2
November 2012 1
June 2012 1
May 2011 1
November 2011 1
October 2011 1

Technology With Vivek Johari

ACID Rules in Sql Server

May 28 2011 5:59PM by Vivek Johari   


ACID Rules

ACID Rules:- It is a concept for evaluation of databases and their architecture.

A:- (Atomicity) – Atomicity  states the principle of  All or none. This means that either all the SQL Statements within the transaction will be executed or no Sql statement will be executed.

C:- Consistency:- Consistency states that only valid data will be written into the database. That means if any Sql transaction violets the rules or constraints define on the database to make it consistent, then all the statements within the transaction will be Rollback. Or in other words the whole transaction will be rolled back.

I:- Isolation :- The Isolation state that if multiple transaction try to work on the database at the same time,then these transaction will not interfere with each other. It means the second transaction will not work unless and until the previous transaction completes its work and the work is commited.

D:- Durability:- Durability states that once the transaction is committed, then the database should not be lost in case of Software failures or hardware failures. Durability is maintained with the help of the  database backups and transaction logs. 



Republished from Technology with Vivek Johari [10 clicks].  Read the original version here [0 clicks].

Vivek Johari
116 · 1% · 445
1
 
0
Lifesaver
 
0
Refreshed
 
 
0
Incorrect



Submit

Your Comment


Sign Up or Login to post a comment.

"ACID Rules in Sql Server" rated 5 out of 5 by 1 readers
ACID Rules in Sql Server , 5.0 out of 5 based on 1 ratings
    Copyright © Rivera Informatic Private Ltd Contact us      Privacy Policy      Terms of use      Report Abuse      Advertising      [ZULU1097]