The document discusses the ACID properties that guarantee database transactions are processed reliably. ACID is an acronym that stands for atomicity, consistency, isolation, and durability. Atomicity means all or nothing transactions. Consistency means transactions can only change data in allowed ways and guarantees the committed transaction state. Isolation means transactions appear to be the only action and transactions are independent. Durability means committed data will never be lost once a transaction is successfully completed.

1. DATABASE
TRANSACTION
P R O P E R T I E S
DATABASE
Introduction To
SWE211
Department of Software Engineering
Daffodil International University

2. Submitted to:
Dr. Touhid Bhuiyan
Head & Associate Professor
Department Of Software Engineering
Daffodil International University
Submitted by:
Markajul Hasnain Alif
ID: 161-35-139
Department Of Software Engineering
Daffodil International University

3. ACIDP R O P E R T I E S

4. “
ACID is a set of properties that
guarantee database
transactions are processed
reliably.

5. ACIDACID is an acronym
for atomicity,
consistency, isolation
and durability.

6. ACID is stand for:
Atomicity
C Consistency
I Isolation
D Durability
A

7. Let’s Dive into
ACID with short
detail ;)

8. Atomici
A
for

9. “
An atomic transaction is either
fully completed, or is not begun
at all.
-----
All or nothing transactions.

10. Consisten
C
for

11. “
Refers to the requirement that
any given database transaction
must change affected data only
in allowed ways.
-----
Guarantees committed
transaction state.

12. Isolatio
I for

13. “
Appears to be the only action
that the system is carrying out
at one time.
-----
Transactions are independent.

14. Durabilit
D
for

15. “
A transaction is durable in that
once it has been successfully
completed, all of the changes it
made to the system are
permanent.
-----
Committed data will never lost.

16. Thanks!
Any questions?
You can find me at:
@MarkajulHasnainAlif
&
alif35-139@diu.edu.bd

17. Resource Reference:
Special thanks to all the people who made and released
these awesome resources for free:
◎ https://msdn.microsoft.com/en-
us/library/aa480356.aspx
◎ https://en.wikipedia.org/wiki/ACID
◎ http://stackoverflow.com/questions/3740280/acid-
and-database-transactions
◎ https://en.wikipedia.org/wiki/Database_transaction
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