DEFINE FILE CAR
Profit/D12=RCOST-DCOST;
END
TABLE FILE CAR
SUM SALES Profit
BY COUNTRY
ON TABLE HOLD FORMAT ALPHA
END
-RUN
? HOLD HOLD
TABLE FILE HOLD 
PRINT *
END

quote:

Reference: Usage Notes for Controlling Field Names in HOLD Files
If no AS phrase is specified for a field, the field name from the original Master File is used. The TITLE attribute specified in the Master File is not used unless SET HOLDATTR was previously issued.
To ensure that fields referenced more than once in a request have unique names in the HOLD Master File, use SET ASNAMES.
All characters are converted to uppercase.
Special characters and blanks used in the AS phrase are preserved in the field name that is created when SET ASNAMES is used. Use single quotation marks around the non-standard field names when referring to them in the newly created Master File.
Text specified in an AS phrase that contains more than 66 characters is truncated to 66 characters in the Master File.
Aliases are not carried over into the HOLD Master File. A new set of aliases is supplied automatically. These aliases are named E01 for the first field, E02 for the second, and so forth.
Duplicate field names may occur in the newly created Master File as a result of truncation or the way AS phrases have been specified. In this case, refer to the fields by their aliases (E01, E02, and so forth).