The
holds one
per row. Each
is of a particular type, and has a source
and a destination
An example of a
is given below:
where:
Relationship file - Detailed specification |
Only one
record with the same id field will be current at any point in time. The current record
will be the one with the most recent effectiveTime before or equal to the point in
time under
If the
field of this record is false ('0'), then the
is
at that point in time. If the
field is true ('1'), then there is a
between the
identified by
and
.
The
,
,
,
, characteristicTypeIdand
will not change between two rows with the same id, in other words they are immutable.
Where a change is required to one of these fields, then the current row will be de-activated
(by appending a row with the same id and the
field set to false) and a new row with a new id will be appended.
The
field is used to group
with the same
field into one or more logical sets. A
with a
field value of '0' is considered not to be grouped. All
with the same
and non-zero
are considered to be logically grouped.
The
field will be an unsigned
, and will not be limited to a single digit value. There is no guarantee that they
will be assigned sequentially, and the values will not be unique across
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