Approval Limits Count Query

Question

We have job titles, and job titles have approval limit attached to them.
Approval limits work against document types - so that for example, job title 'Extended Services Strategy Manager::CA:CB:46' might be able to approve:
1. Standard Purchase Orders
2. Purchase Requisitions
3. Internal Requisitions
This is a sample SQL to show how tables are joined:
The following SQL details how the tables are joined
SELECT   pj.NAME
  2         , pcf.control_function_name
  3         , pcga.control_group_name control_group
  4         , pcr.amount_limit
  5      FROM po.po_position_controls_all ppca
  6         , po.po_control_groups_all pcga
  7         , po.po_control_functions pcf
  8         , po.po_control_rules pcr
  9         , hr.per_jobs pj
10     WHERE ppca.job_id = pj.job_id
11       AND pcga.control_group_id = ppca.control_group_id
12       AND pcf.control_function_id = ppca.control_function_id
13       AND pcr.control_group_id = ppca.control_group_id
14       AND pcr.object_code = 'DOCUMENT_TOTAL'
15       AND pj.NAME IN
16              ('6th Form Admin and Cover Officer::AA:AE:5031'
17             , 'Acc Asst/Auditor:G:KB::')
18  ORDER BY pj.NAME;
NAME                                                               CONTROL_FUNCTION_NAME             CONTROL_GROUP   AMOUNT_LIMIT
6th Form Admin and Cover Officer::AA:AE:5031                       Approve Purchase Requisitions     GG £5000                5000
6th Form Admin and Cover Officer::AA:AE:5031                       Approve Standard Purchase Orders  GG £5000                5000
6th Form Admin and Cover Officer::AA:AE:5031                       Approve Purchase Requisitions     GH £5000                5000
6th Form Admin and Cover Officer::AA:AE:5031                       Approve Standard Purchase Orders  GH £5000                5000
6th Form Admin and Cover Officer::AA:AE:5031                       Approve Purchase Requisitions     GJ £5000                5000
6th Form Admin and Cover Officer::AA:AE:5031                       Approve Standard Purchase Orders  GJ £5000                5000
Acc Asst/Auditor:G:KB::                                            Approve Purchase Requisitions     AC £10000              10000
Acc Asst/Auditor:G:KB::                                            Approve Standard Purchase Orders  AC £10000              10000
Acc Asst/Auditor:G:KB::                                            Approve Internal Requisitions     AC £10000              10000
9 rows selected.
SQL>Each of the 'CONTROL_GROUPS', stored in the po.po_control_groups_all table hold the name of a Control Group - e.g. GG £5000.
Each CONTROL_GROUP has a rule attached to it (stored in the po.po_control_rules table).
The rule has an approval value attached to it (abount_limit).
The 'CONTROL_GROUP' is also attached to a control_function_name, which is just a document type. So we can say, for example, that against a job title, a user can approve Standard Purchase Orders, and Purchase Requisitions, for the GG Service Segment, for a value of £5000.
Our policy states that the abount_limit against a job title should always be the same. As you can see above - the amount_limit for the 6th Form Admin and Cover Officer::AA:AE:5031 is only ever set to £5000.
However, there are job titles where the amount_limit value contains 2 or more different values against a job title.
I need a way to identify these job titles, but I cannot work out how to do it.
I could do a count of CONTROL_GROUPS against a job title, but that doesn't help a lot:
SELECT   pj.NAME
  2         , COUNT(*) ct
  3      FROM po.po_position_controls_all ppca
  4         , po.po_control_rules pcr
  5         , hr.per_jobs pj
  6     WHERE ppca.job_id = pj.job_id
  7       AND pcr.control_group_id = ppca.control_group_id
  8       AND SYSDATE BETWEEN ppca.start_date AND NVL(ppca.end_date, SYSDATE + 1)
  9       AND pcr.object_code = 'DOCUMENT_TOTAL'
10       AND pj.NAME IN
11              ('6th Form Admin and Cover Officer::AA:AE:5031'
12             , 'Acc Asst/Auditor:G:KB::')
13  GROUP BY pj.NAME
14  ORDER BY 2 DESC;
NAME
6th Form Admin and Cover Officer::AA:AE:5031                                              6
Acc Asst/Auditor:G:KB::                                                                   3
SQL>Because I can see now that there are 6 rules attached to the first job title. Ideally, what would be great would be to find a way to modify the Counbt SQL statement above, to include a 3rd column which did a distinct count of how many different 'amount_limits' were also attached to the job title.
That is where I am very stuck.
Any help much appreciated.
Sorry for writing so much. Seems easier to write too much, than not enough. I can provide desc outputs for the tables as well, but haven't done right away, because it'd make this post even longer...

Answer 1

Hi Colin,
thanks for your reply.
Sorry for asking a silly question - I'm not familiar with what DDL and DML are - would that be the same as me doing something like:
desc table_name;
And supplying the table structures of the tables in question?
Just checked on Google, and found:
http://www.orafaq.com/faq/what_are_the_difference_between_ddl_dml_and_dcl_commands
But I'm still not too sure what you would like me to supply...
Sorry.