Question

I am newbie to database and SQL Server.

So when i have search things about database on internet i have found that The Database said to be good if it obey or follow the ACID (Atomicity, Consistency, Isolation, Durability) property.

I wonder that the Microsoft SQL Server (Any Version Current or previous one) follow the ACID property internally or if we are using MS SQL Server in our application then we have to write coding such way that our Application follow the ACID property.

In Short: Maintain the ACID property is task (or liability) of Database
Or its task of Application Programmer.

Thanks..

Answer 1

IMHO, it is a two fold maintainance. Both DB Admins (writing stored procedures ) and programmers should enforce ACID Properties. SQL Server maintains its own ACID properties internally and we don’t have to worry about that.

ACID Properties are enforced in SQL Server.

Read this: Acid Properties of SQL 2005

But that doesn’t mean that that the Database would handle everything for you.

According to Pinal Dave (blog.sqlauthority.com)

ACID (an acronymn for Atomicity
Consistency Isolation Durability) is a
concept that Database Professionals
generally look for when evaluating
databases and application
architectures. For a reliable database
all this four attributes should be
achieved.

Atomicity is an all-or-none
proposition.

Consistency guarantees that a
transaction never leaves your database
in a half-finished state.

Isolation keeps transactions separated
from each other until they’re
finished.

Durability guarantees that the
database will keep track of pending
changes in such a way that the server
can recover from an abnormal
termination.

Above four rules are very important
for any developers dealing with
databases.

That goes for developers dealing with databases.

But application developers should also write business logic on which ACID properties are being enforced.

An example on Practical use of ACID properties would help you more I guess