What is Consumer resource group ,ORacle services?

Question

Hi,
Could any one can explain what is Consumer resource group and Oracle Services.??
Thanks,
Nats

Answer 1

Hi Mohamed,
To answer your questions:
Q: What is parent resouce ID?
ANS: In your data, you may have some tasks that are associated with another task i.e. child tasks of a parent task. That association would need to be held in a column of your database table, for example PARENT_ID. The value held in the PARENT_ID column would be the ID of the parent task that the current task is associated with. For example, on this page - http://apex.oracle.com/pls/apex/f?p=36648:86 - you can see that the 2nd task, "Update Application Wizard", is a child of the parent node "Charts Integration", and that association is based upon the value stored in the PARENT_ID column of my sample table.
Q: Is it also mandatory? Can I create a gantt chart without it?
ANS: No, it is not mandatory. However, the syntax of the query must include PARENT_ID, which you can of course set to NULL, as you can see in the following example:
SELECT NULL LINK,
       RESOURCE_ID ID,
       TASK_NAME NAME,
       NULL PARENT_ID,
       START_DATE ACTUAL_START,
       END_DATE ACTUAL_END
FROM   TASKS Below is another sample query, where you can see the PARENT_ID is being set. In this case, we want to represent a hierarchical task list
SELECT 'f?p=4000:2:'||:APP_SESSION||':::P2_ID:'||ID LINK
       RESOURCE_ID ID,
       RESOURCE_NAME NAME,
       PARENT_ID PARENT_ID,
       START_DATE ACTUAL_START,
       END_DATE ACTUAL_END
FROM   TASKSI hope this helps to clarify things.
Regards,
Hilary