How to select header group with detailed data in one SQL

Question

Dear,
I would like to have a little help from you. My goal is to create a view where data must be in appropriate format. In this format i would like to have for each group one header.
I have 3 tables which they ar connected to each other (representing hierachical data where financial plan breaks across different groups).
CRM_PLAN
CRM_PLAN_ID
DATE
AMOUNT
CRM_PLAN_PE
CRM_PLAN_PE_ID
TITLE
AMOUNT
CRM_PLAN_ID (ref key to CRM_PLAN.CRM_PLAN_ID)
CRM_PLAN_MONTH
CRM_PLAN_MONTH_ID
YEAR
MONTH
AMOUNT
CRM_PLAN_PE_ID (foreign key to CRM_PLAN_PE.CRM_PLAN_PE_ID)
Data looks like:
CRM_PLAN
CRM_PLAN_ID | DATE | AMOUNT
1 | 01.01.2012 | 500
2 | 01.02.2012 | 200
CRM_PLAN_PE
CRM_PLAN_PE_ID |TITLE | AMOUNT | CRM_PLAN_ID
1 | Organization 1 |100 | 1
2 | Organization 2 |400 | 1
3 | Organization 3 |200 | 2
CRM_PLAN_MONTH
CRM_PLAN_MONTH_ID | YEAR | MONTH | AMOUNT | CRM_PLAN_PE_ID
1 | 2012| 1 | 60 |1
2 | 2012| 2 | 40 |1
3 | 2012| 1 | 350 |2
4 | 2012| 2 | 50 |2
5 | 2012| 1 | 200 |3
I would like view which would return data like:
MONTH | AMOUNT
Organization 1 |null
1 | 60
2 | 40
Organization 2 | null
1 | 350
2 | 50
Organization 3 | null
1 | 200
The main question is hot to write an sql as source for view to insert before each group a row with title column value from table CRM_PLAN_PE. Is that even possible? Maybe you could suggest me some other method.
View will be used in oracle form where will be possible to edit data - I will arrange that through insted of trigger.
Regards,
Igor
Edited by: user5528050 on 29.11.2012 2:23
Edited by: user5528050 on 29.11.2012 2:24
Edited by: user5528050 on 29.11.2012 2:25

Answer 1

Hi, Igor,
user5528050 wrote:
... I would like view which would return data like:
MONTH | AMOUNT
Organization 1 |null
1 | 60
2 | 40
Organization 2 | null
1 | 350
2 | 50
Organization 3 | null
1 | 200
The main question is hot to write an sql as source for view to insert before each group a row with title column value from table CRM_PLAN_PE. Is that even possible? Maybe you could suggest me some other method. So, you want to have 2 different kinds of rows in the output:
(1) "parent" or "master" rows containing data from crm_plan_pe, such as
MONTH          AMOUNT
==============     ======
Organization 1(2) "child" or "detail" rows containing data from crm_plan_month, such as
MONTH          AMOUNT
==============     ======
1          60Sure, you can do that.
One way is to do a UNION of 2 separate queries: (1) to generate just the parent rows, (2) to generate just the child rows.
You could also join the 2 tables and use GROUP BY GROUPING SETS. The super-aggregate rows would be the parent rows.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables involved (it looks like crm_plan is not involved in this problem), and also post the results you want from that data. You need to post this whether or not you want SQL code in reply. The people who want to help you want to provide good answers, and that means they want to re-create the probelm and try their ideas.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
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