The document discusses transactions in a database. It defines a transaction as a logical unit of database operations, such as inserts, deletes, or updates. The document outlines the different states a transaction can be in, from start to either commit if successful or abort if unsuccessful. A diagram shows how transaction states work. The key properties of transactions - Atomicity, Isolation, Consistency and Durability (ACID) properties - are also explained.

1. 01
DEFINATION
Definition of Transaction
02
DIFFERENT STATES
Different States of Transaction
03
STATES DAIGRAM
How Transaction States work
04
PROPERTIES
Different properties of Transaction
T R A N S A C T I O N
C O N C E P T

2. INSERT
DELETE
UPDAT
E
BANK
DATA BASE
It’s a Logical unit of Data
Base
Logical unit means Each and
every time we perform set of
operation
TRANSACTION DEFINATION

3. After Successful
completion of
transaction
Commit
If transaction is
unsuccessful
terminate the
transaction
Abort & End
Read Transaction
Read State
New content of
transaction
Write State
In this state
Transaction is going to
start
Start State
STATES OF TRANSACTION

4. TRANSACTION PROCESSING DAIGRAM

5. ACID
ATOMICITY
The transaction should get
entirely completed either with
commit or with abort
ISOLATION
Independent execution of each
and every transaction
CONSISTENCY
All the transaction should be
in the valid state
DURABILITY
Permanent storage of data
base
PROPERTIES OF
TRANSACTION

6. THANK YOU
BY:- ABDUL AZIZ