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Transaction Management in Java JDBC

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Transaction Management in JDBC

Transaction represents a single unit of work.

The ACID properties describes the transaction management well. ACID stands for Atomicity, Consistency, isolation and durability.

Atomicity means either all successful or none.

Consistency ensures bringing the database from one consistent state to another consistent state.

Isolation ensures that transaction is isolated from other transaction.

Durability means once a transaction has been committed, it will remain so, even in the event of errors, power loss etc.


Advantage of Transaction Mangaement

fast performance It makes the performance fast because database is hit at the time of commit.


transaction management in jdbc

In JDBC, Connection interface provides methods to manage transaction.

Method Description
void setAutoCommit(boolean status) It is true bydefault means each transaction is committed bydefault.
void commit() commits the transaction.
void rollback() cancels the transaction.

Simple example of transaction management in jdbc using Statement

Let's see the simple example of transaction management using Statement.

If you see the table emp400, you will see that 2 records has been added.

Example of transaction management in jdbc using PreparedStatement

Let's see the simple example of transaction management using PreparedStatement.

It will ask to add more records until you press n. If you press n, transaction is committed.


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