Database Management
Reference Manual
Introduction to Database Concepts
:
Data Access Control (DACs)
: Element Creation
Element Creation
Elements may be created. They are always created one at a time, and may only be created at a legitimate point in the primary hierarchy.
On creation, a unique reference number will be assigned. The method by which the default reference number is generated is described in
User Defined Hierarchies
.
It is possible to create an element with a specified reference number, provided it is unused and valid for the DB. This functionality is provided for certain specialised situations (such as recreating an exact copy of a DB, so that all references to elements from other DBs remain valid), and is not recommended for general use.
The attributes will be set to their default values. In some cases the default attribute values are cascaded down from the owning element.
1974 to current year.
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