Next time a newbie tell's ya the AH Manual is not well written, get him to understand this one :
Physical and logical deletion of a logical child segment in
unidirectional and physically paired bidirectional logical
relationships occurs when a delete call is issued to delete an
occurrence of the logical child segment type, or a segment that is a
parent of the logical child in the logical child's physical data base.
In addition for a physically paired logical relationship, when a
logical child segment is physically and logically deleted by issuing a
call to delete the logical child segment or a segment that is a parent
of the logical child in the same physical data base, the paired logical
child segment is logically deleted. The paired logical child is both
physically and logically deleted when the rule specified for the paired
logical child is virtual. For virtually paired logical relationships,
logical deletion of a logical child segment occurs when the delete rule
of logical or virtual is specified for the logical parent, and a delete
call is issued to delete an occurrence of the logical parent segment
type or a parent of the logical parent in the logical parents physical
data base. Physical deletion of a real logical child segment occurs
when a call is issued to delete an occurrence of the real logical child
or a segment that is a parent of the real logical child segment in the
same physical data base.
- Data Logic education manual, 17 June 1986
Saw
