Range of Type
This type of field can keep values in the range 0..255.
This field always uses 1 byte on disk per value.
BYTE field can be declared as Nullable.
This field can have flag fIndexed.. For a BYTE field Valentina uses a special kind of index, which is highly optimized for this range of values.
This flag do not have sense for BYTE field, because then you will be able to have in the table only 255 records (except NULL records).
This field type is represented at the API level by VByte Class.
At SQL Level you can create such field using
CREATE TABLE T1( fldByte BYTE );
You can use this field in any predicate expression, e.g.
SELECT * FROM T1 WHERE fldByte = 54;