Database Management
Reference Manual
Introduction to Database Concepts
: Database Attributes
Database Attributes
Every element may have a number of attributes. All elements have the following attributes:
NAME
the element's name
TYPE
the element's type
LOCK
if set, then the element may not be modified
OWNER
the element's owner
MEMBERS
the current members of the element
The remaining attributes vary depending on the element type. The Database Schema defines which attributes are available on an element type. The allowed attributes for an element type may be ascertained using PML objects and other command queries.
Attributes may be one of the following types:
Integer
Ref
Integer Array
Ref Array
Real
Position
Real Array
Direction
Bool (or Logical)
Orientation
Bool (or Logical) Array
Attribute
String (or Text)
ElementType (or Noun)
A 'Ref' type is a pointer to another element. For example, on a BRANCH element the CREF attribute points to the connected NOZZLE. The use of Ref attributes enables AVEVA E3D™ to model networks and other cross relationships.
The attribute type dictates how the attribute can be set with PML or specific syntax.
1974 to current year.
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