ACID Rules in Sql Server

ACID Rules

This article will tell about the ACID Rules in SQL Server. 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 committed.
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.

About vivekjohari

Database Consultant with more than 11.5 years of experience in database designing & programming and DBA related activities.  Had good experience on different databases like SQL Server, MySQL & Oracle, Azure SQL &  Big Data.
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