o  The field name you assign can be up to 31 characters from the set
      A-Z,  0-9,  _,  and $.  The first character must be a letter from
      A-Z, and the last character can not be _ or $.  You can use 8-bit
      alphabetic characters in field names.

   o  If you use an asterisk (*) instead of a field name, you create an
      unnamed field.

   o  You must include the DATATYPE clause  among  the  selected  field
      attributes.

   o  You must terminate the  elementary  field  description  statement
      with a period.