The primary benefit of incremental backups is that they are faster to perform and consume less storage space compared to full backups. This is because they only back up the changes made since the last backup, reducing the amount of data stored and the time required for each backup operation.

The ALTER USER statement is used to modify a user's password or other properties. Updating the mysql.user table directly is not recommended.

In semi-synchronous replication, the primary server waits for at least one replica to acknowledge the receipt of the transaction before committing. This provides a balance between data consistency and performance.

MySQL InnoDB Cluster uses Group Replication with automatic failover to promote a new primary server automatically in the event of primary server failure, ensuring continued availability.

MySQL Enterprise Firewall analyzes incoming SQL queries and blocks any that are identified as potentially harmful or unauthorized, such as SQL injection attempts. It learns from legitimate traffic to build an allowlist of acceptable queries.