There is an ODBC option, so as long as MySql is set up for ODBC compliance, you can execute it.
As for DB2, I would suggest that the same method you might use in a batch file will also work in TC. In fact, by setting up TC to call a batch file, then anything that TC cannot bo directly, you can get TC to do indirectly.
I hope this helps,
Software Test Engineer
If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization.