The ROLLBACK PREPARED command is used to roll back a prepared transaction in PostgreSQL database. Prepared transactions are a feature that allows you to prepare a transaction for execution and then later commit or roll back that transaction using a unique identifier known as the transaction’s name or identifier. Here’s the syntax for the ROLLBACK…

A savepoint is a feature that allows you to create a named point within a transaction to which you can later roll back, while leaving the rest of the transaction intact. Savepoints are useful when you want to handle errors or exceptions within a transaction and selectively roll back to a specific point in the…

The ROLLBACK statement is used to undo all changes made within the current transaction and discard those changes. It effectively cancels the transaction and restores the database to its state before the transaction began. Here’s how you typically use the ROLLBACK statement in PostgreSQL: Start a transaction using the BEGIN statement: BEGIN; This begins a…

The COMMIT statement is used to permanently save any changes made within a transaction to the PostgreSQL database. PostgreSQL, like many other relational database management systems, uses transactions to group a series of database operations into a single unit of work. The COMMIT statement is issued to confirm that the changes made within a transaction…