We have a MySQL database on an IBM i (as/400) that has many people with admin access. We would like to audit who is making changes, and when they are made. On SQL Server we would use DDL Triggers, but those don't exist on MySQL. There is a counter proposal to do this via CREATE EVENT, but that is also unimplemented.
What options do I have to monitor DDL? Most people are using MySQL admin. I'm using MySQL Workbench, and inside the network, and inside the network all parties have direct access to the MySQL database because Microsoft Access accesses it via linked tables.