The Description file holdsthat describe
A
is used to give meaning to a
and provide well-understood and standard ways of referring to a
Field | Data type | Immutable | Purpose | Part of Primary Key |
|---|---|---|---|---|
id | Y | Uniquely identifies the | YES (Full/Snapshot) | |
N | Specifies the inclusive date at which the component version's state became the then current valid state of the component | YES (Full) Optional (Snapshot) | ||
N | Specifies whether the state of the | NO | ||
N | Identifies the | NO | ||
conceptId | Y | Identifies the | NO | |
languageCode | Y | Specifies the | NO | |
Y | Identifies whether the | NO | ||
N | The | NO | ||
N | Identifies the | NO |
Only onerecord 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 consideration.
If thefield of this record is false ('0'), then the
is
at that point in time. If the
field is true ('1'), then the
is associated with the
identified by the conceptId field.
The conceptId field, the languageCode field and the typeId field 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 component will be inactivated (by appending a row with the same id and thefield set to false) and a another row will be added representing a new component with a new id. Only limited changes may be made to the term field, as defined by editorial rules.
Eachwill have at least one
with a typeId of
|synonym|
and at least one
with a typeId of
|Fully specified name|
.
Where aonly has one
with a typeId of
|Fully specified name|
across all
codes within a release, then that
can be taken as the
for all
and
and need not be explicitly included in every
associated with that release.
The term field will be restricted as follows:
- to an overall maximum length of 32Kb;
to a maximum length, configurable for each
as defined in the |Description format reference set| member associated with that
The |Description format reference set| also defined the format of the term field (plain text, limited HTML, XHTML) for each
Control characters (including TABs, CRs and LFs) will not appear in |Plain text| or |Limited HTML| format types.
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