Following question came up recently: What happens if you drop or add a partition of an existing already partitioned table with ALTER TABLE? Will it be copied or will just the single partition be dropped and added? How are the index(es) rebuild after such a drop/add?
The following maintenance jobs are typically run against a MySQL database:
Backup
Clean-up binary logs
Optimize tables
Purge query cache
Rotate binary logs
Backup
A backup is not a typical maintenance job. But it behaves more or less like one. The backup should be done regularly depending on the restore/PITR (Point in Time Recovery) requirements.