Redis Transactions: Complete Guide

The method Redis uses to handle transactions involves using the MULTI, EXEC, DISCARD, and WATCH commands. The specific steps are as follows:

1. Begin a transaction by using the MULTI command.
2. Multiple commands can be used in a transaction block to carry out a series of operations, which will be temporarily stored in a transaction queue.
3. Execute all operations in the transaction queue using the EXEC command. If all operations are successful, the transaction will be committed; otherwise, it will be rolled back.
4. Utilize the DISCARD command to cancel the transaction and clear all operations in the transaction queue.
5. Monitoring one or more keys with the WATCH command will cause the transaction to be aborted if these keys are modified by another client.

Using the above method, Redis can achieve simple transaction processing to ensure the atomicity of a series of operations.