Using the ODBC Driver for 4D Server it is possible for ODBC compliant client applications to access data residing on a 4D Server.

However, there is no ODBC Driver for on the Macintosh. If you need to access a 4D Server via ODBC from a Macintosh client application, take a look at the ODBC Router from August Software

For more general information about the state of ODBC on the Mac.