ORACLE_NUMBER is a field containing a number in the Oracle number format. The field is a fixed length (the maximum size of an Oracle number field) unless COUNTED is specified, in which case the first byte of the field contains the number of bytes in the rest of the field.

ORACLE_NUMBER is a fixed-length 22-byte field. The length of an ORACLE_NUMBER COUNTED field is one for the count byte, plus the number of bytes specified in the count byte.