This help book in the Language Reference book covers the following information:

Every Xbase command and function includes a section that lists the OODML (object-oriented data manipulation language) equivalent, when one exists.

The examples in this section are mostly data processing and utility code.  Data entry in dBASE Plus is done at another level, either using the form-based events that are melded into the Xbase worksets, or the dBASE Plus data objects, which replace most Xbase functionality and provide powerful new object-oriented capabilities.

The examples also do not use any new dBL syntax, and thus are compatible with older versions of dBASE.