postgresqlHow do I begin a transaction in PostgreSQL?

To begin a transaction in PostgreSQL, you must use the BEGIN command. This command starts a new transaction.

For example, to start a transaction named my_transaction:

BEGIN TRANSACTION my_transaction;

This will start a new transaction and will not make any changes to the database until the transaction is committed.

You can also start a transaction with the START TRANSACTION command, which is an alias for BEGIN.

START TRANSACTION my_transaction;

Once a transaction has been started, you can make any changes you want to the database. When you are done making changes, you must commit the transaction using the COMMIT command.

COMMIT TRANSACTION my_transaction;

This will commit any changes you have made in the transaction to the database.

If you decide not to commit the changes, you can rollback the transaction using the ROLLBACK command.

ROLLBACK TRANSACTION my_transaction;

This will undo any changes you have made in the transaction and return the database to its previous state.

Helpful links

• PostgreSQL Documentation - BEGIN
• PostgreSQL Documentation - COMMIT
• PostgreSQL Documentation - ROLLBACK

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