Understanding BEGIN TRANSACTION in SQL Server

What is BEGIN TRANSACTION?

BEGIN TRANSACTION is a SQL Server statement that initiates a transaction. It tells the database engine to start tracking changes made by subsequent SQL statements.

All changes made after BEGIN TRANSACTION are temporary until the transaction is either committed or rolled back.

• Marks the start of a transaction block.
• Groups multiple SQL statements into one atomic operation.
• Ensures all changes succeed or none are applied.

Syntax and Basic Usage

The syntax for BEGIN TRANSACTION is straightforward. You simply write BEGIN TRANSACTION before your SQL statements.

After executing your statements, use COMMIT TRANSACTION to save changes or ROLLBACK TRANSACTION to undo them.

• BEGIN TRANSACTION;
• -- SQL statements here
• COMMIT TRANSACTION; -- or ROLLBACK TRANSACTION;

Example: Using BEGIN TRANSACTION

Here is a simple example demonstrating BEGIN TRANSACTION with COMMIT and ROLLBACK.