Advanced Queuing - Oracle

Use Case Diagrams
Figure E–8 The Branching Paths of an OR Condition
User/
Program
SELECT
propag schedules
in user schema
OR
User view:
USER_QUEUE_
SCHEDULES
In Figure E–9, the black dashed line and arrow indicate that the targeted operation
is required. The gray dashed line and arrow indicate that the targeted operation is
optional. In this example, executing
write append
on a LOB requires that you first
SELECT a LOB
You may optionally choose to
list
all propagation
schedule
attributes
OPEN a LOB or get chunk size
The diagram shows that if you open a LOB, you must also close it.
E-6 Oracle9i Application Developer’s Guide - Advanced Queuing
list
attribute
names
List at
least one
attribute