Allocates space for variables in a random-access file buffer.
 
FIELD [#]filenumber%, fieldwidth% AS stringvariable$
                    [,fieldwidth% AS stringvariable$] ...
 
    - filenumber%        The number of an open file.
    - fieldwidth%        The number of characters in the field.
    - stringvariable$    A variable that identifies the field and contains
                         field data.
 
    - Record variables usually provide a better way to handle record data.
 
Example:
    OPEN "FILEDAT.DAT" FOR RANDOM AS #1 LEN = 80
    FIELD #1, 30 AS name$, 50 AS address$
 
See Also    <GET, PUT>    <LSET, RSET>    <TYPE>    <DIFFERENCES FROM BASICA>