Need Assistance On PL/SQL Coding

Question

Hi,
I'm doing the procurement system and I need to generate a report base on the <request_no> to locate each <order_item> record which had ordered for last two years.
For example:
=========
request_no: REQ10010001
Order Item:
ITEM Output
===== =======
1. LAMP PILOT TUBULAR CLEAR E-1 SEP'09 (75 pcs), NOV'09 (50 pcs)
2. LAMP PILOT TUBULAR CLEAR E-2 DEC'08 (16pcs), AUG'09 (12 pcs), OCT'09 (80 pcs)
3. LAMP PILOT TUBULAR CLEAR E-3 SEP'09 (4 pcs)
Note: Generate the output as of today's query date, to locate back the past two years record and count the no. of pieces ordered /per item /per month.
Please advice should I use function or store procedure to return the record?
Please assist to provide the code sample on this for easy reference.
Best regards,
sm

Answer 1

Hi,
OK, i have a tablename: hdr_pos
Fields: PO_NO, PO_DATE, PO_ITEM_NO etc...
This table was keeping 10 years past history record.
Can give me a sample of code in PL/SQL:-
- I will input a PO_NO to generate the output (and in this PO is consisting 10 items).
- As of today's date (03-Mar-2010) to locate past two years record based on PO_DATE, the past two years date range should be from (03-Mar-2008 to 03-Mar-2010).
- The PO_DATE between (03-Mar-2008 to 03-Mar-2010) total up the no. of orders for every month.
- Ouput listing will be by PO_ITEM, total of order/month.
Example:-
ITEM Output
===== =======
1. LAMP PILOT TUBULAR CLEAR E-1 -------output-------> SEP'09 (75 pcs), NOV'09 (50 pcs)
2. LAMP PILOT TUBULAR CLEAR E-2 -------output-------> DEC'08 (16pcs), AUG'09 (12 pcs), OCT'09 (80 pcs)
3. LAMP PILOT TUBULAR CLEAR E-3 -------output-------> SEP'09 (4 pcs)
10
Hope you can help
rdgs,
sm