HOw to Get the top level of Hierarchy and count on that basis

Question

hi
i have following tables
desc hr_organizations_units_V
organization_id PRIMARY KEY
name
ORGANIZATION_type
per_org_structure_elements
organization_id_parent FK TO hr_organizations_units_V(ORGANIZATION_ID)
organization_id_child FK TO hr_organizations_units_V(ORGANIZATION_ID)
I HAVE THIS QUERY TO GET PARENT CHILD
SELECT ORGANIZATION_ID_PARENT PARENT,ORGANIZATION_ID_CHILD CHILD,ORGANIZATION_TYPE FROM PER_ORG_STRUCTURE_ELEMENTS OSE,HR_ALL_ORGANIZATION_UNITS AOU WHERE AOU.ORGANIZATION_ID = OSE.ORGANIZATION_ID_CHILD CONNECT BY PRIOR ORGANIZATION_ID_CHILD = ORGANIZATION_ID_PARENT
START WITH ORGANIZATION_ID_PARENT = 82 -- THE GRAND PARENT
ORDER BY ORGANIZATION_ID_PARENT
PARENT CHILD ORGANIZATION_TYPE
82 83 COMPANY
82 143 COMPANY
83 84 DIVISION
83 134 DEPARTMENT
83 135 DEPARTMENT
DESC per_all_assignments_f
ASSIGNMENT_NUMBER
ORGANIZATION_ID FORIGN KEY TO HR_ALL_ORGANIZATION_UNITS
THE ASSIGNMENTS ARE ASSIGNED ON DEPARTMENT LEVEL.
MY REQUIREMENT IS THAT I WANT TO GET THE
1)TOTAL NO OF ASSIGNMENTS ON THE DIVISION LEVEL
2)TOTAL NO OF ASSIGNMENTS ON THE COMPANY LEVEL
3)REPORTS LIKE PAY SLIP ETC I WANT TO GET THE ABOVE TWO LEVELS OF ORGANIZATION FOR EACH EMPLOYEE I.E DIVISION AND COMPANY OF
OF THE EMPLOYEE'S DEPARTMENT.
I WILL REALLY APPRECIATE ANY HELPING HAND.
REGARDS

Answer 1

Here are a few ways to get what I think you are asking for now. If this is not what you want, then please provide a complete example of what you want, including sample data, and the complete query result, including numbers, based on that data, that you want, as I have done below.
scott@ORA92> -- test data:
scott@ORA92> SELECT * FROM hr_all_organization_units
  2  /
ORGANIZATION_ID NAME                                ORGANIZATIO
             82 GRANDPARENT                         GRANDPARENT
             83 COMPANY 83                          COMPANY
             84 DIVISION 84                         DIVISION
            134 DEPARTMENT 134                      DEPARTMENT
            135 DEPARTMENT 135                      DEPARTMENT
            143 COMPANY 143                         COMPANY
6 rows selected.
scott@ORA92> SELECT * FROM per_org_structure_elements
  2  /
ORGANIZATION_ID_PARENT ORGANIZATION_ID_CHILD
                    82                    83
                    82                   143
                    83                    84
                    84                   134
                    84                   135
scott@ORA92> SELECT * FROM per_all_assignments_f
  2  /
ASSIGNMENT_NUMBER ORGANIZATION_ID
                1              83
                2              84
                3             134
                4             135
                5             143
                6              84
6 rows selected.
scott@ORA92> -- method 1:
scott@ORA92> COLUMN  name FORMAT A35
scott@ORA92> SELECT  RPAD ('.', 5 * (LEVEL - 1), '.') || aou.name AS name,
  2           (SELECT SUM (the_count)
  3            FROM   (SELECT organization_id_parent,
  4                     organization_id_child,
  5                     COUNT (*) AS the_count
  6                 FROM   per_org_structure_elements,
  7                     per_all_assignments_f
  8                 WHERE  per_org_structure_elements.organization_id_child =
  9                     per_all_assignments_f.organization_id
10                 GROUP  BY organization_id_parent,
11                     organization_id_child) t
12            START  WITH t.organization_id_child =
13                  ose.organization_id_child
14            CONNECT BY PRIOR t.organization_id_child =
15                       t.organization_id_parent) AS assignments_count
16  FROM   PER_ORG_STRUCTURE_ELEMENTS OSE,
17           HR_ALL_ORGANIZATION_UNITS  AOU
18  WHERE  AOU.ORGANIZATION_ID = OSE.ORGANIZATION_ID_CHILD
19  START  WITH aou.name = '&company_name'
20  CONNECT BY PRIOR ose.ORGANIZATION_ID_CHILD = ose.ORGANIZATION_ID_PARENT
21  /
Enter value for company_name: COMPANY 83
old  19: START  WITH aou.name = '&company_name'
new  19: START  WITH aou.name = 'COMPANY 83'
NAME                                ASSIGNMENTS_COUNT
COMPANY 83                                          5
.....DIVISION 84                                    4
..........DEPARTMENT 134                            1
..........DEPARTMENT 135                            1
scott@ORA92> -- method 2:
scott@ORA92> COLUMN  name FORMAT A35
scott@ORA92> WITH sub_query AS
  2  (SELECT ose.organization_id_parent, ose.organization_id_child,
  3            aou.name, COUNT (*) AS assignments
  4   FROM   per_org_structure_elements ose,
  5            hr_all_organization_units     aou,
  6            per_all_assignments_f     aaf
  7   WHERE  ose.organization_id_child = aou.organization_id
  8   AND    ose.organization_id_child = aaf.organization_id
  9   AND    aou.organization_id = aaf.organization_id
10   GROUP  BY ose.organization_id_parent, ose.organization_id_child, aou.name)
11  SELECT RPAD ('.', 5 * (LEVEL - 1), '.') || name AS name,
12           (select SUM (assignments)
13            from   sub_query
14            start  with organization_id_child = t.organization_id_child
15            connect by prior organization_id_child = organization_id_parent)
16           AS assignments_count
17  FROM   sub_query t
18  START  WITH name = '&company_name'
19  CONNECT BY PRIOR ORGANIZATION_ID_CHILD = ORGANIZATION_ID_PARENT
20  /
Enter value for company_name: COMPANY 83
old  18: START  WITH name = '&company_name'
new  18: START  WITH name = 'COMPANY 83'
NAME                                ASSIGNMENTS_COUNT
COMPANY 83                                          5
.....DIVISION 84                                    4
..........DEPARTMENT 134                            1
..........DEPARTMENT 135                            1
scott@ORA92> -- method 3:
scott@ORA92> COLUMN  name FORMAT A35
scott@ORA92> CREATE OR REPLACE VIEW sub_query AS
  2  SELECT ose.organization_id_parent, ose.organization_id_child,
  3           aou.name, COUNT (*) AS assignments
  4  FROM   per_org_structure_elements ose,
  5           hr_all_organization_units  aou,
  6           per_all_assignments_f      aaf
  7  WHERE  ose.organization_id_child = aou.organization_id
  8  AND    ose.organization_id_child = aaf.organization_id
  9  AND    aou.organization_id = aaf.organization_id
10  GROUP  BY ose.organization_id_parent, ose.organization_id_child, aou.name
11  /
View created.
scott@ORA92> SELECT RPAD ('.', 5 * (LEVEL - 1), '.') || name AS name,
  2           (select SUM (assignments)
  3            from   sub_query
  4            start  with organization_id_child = t.organization_id_child
  5            connect by prior organization_id_child = organization_id_parent)
  6           AS assignments_count
  7  FROM   sub_query t
  8  START  WITH name = '&company_name'
  9  CONNECT BY PRIOR ORGANIZATION_ID_CHILD = ORGANIZATION_ID_PARENT
10  /
Enter value for company_name: COMPANY 83
old   8: START  WITH name = '&company_name'
new   8: START  WITH name = 'COMPANY 83'
NAME                                ASSIGNMENTS_COUNT
COMPANY 83                                          5
.....DIVISION 84                                    4
..........DEPARTMENT 134                            1
..........DEPARTMENT 135                            1