tricky pivot query
- From: "Rick Ricky" <ricks12345@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Tue, 10 Jun 2008 23:28:30 -0400
I am pretty sure I need to use the model clause to do this efficient. I am
reading the docs and examples, but I am a bit stumped. I have two tables
daily_summary (
day_id number,
empno number,
sales_rollup number);
monthly_summary (
month_id number,
empno number,
sales_rollup number);
daily_summary table
day_id is a number representing a date of the form YYYYMMDD.
This is a group by of the sales for a given day
monthly_summary
month_id is a number representing a date of the form YYYYMM
this is a rollup of daily_summary by month.
I am given an empno. I need to return
empno, sales_0,sales_1,sales_2,sales_3
sales_0 current months sales. So if this is june 10th, I need to rollup the
first 10 days of the month from the daily_summary
sales_1 is last months rollup of sales (I have this in monthly_summary)
sales_2 is 2 months ago rollup of sales
sales_3 is 3 months ago rollup of sales
I am doing this in the database and passing back a ref cursor. So i need a
pivot query, I need a group by (I think) and I need it to be dynamic.
any suggestions? The examples are all more basic than this. am I going in
the correct direction with the model clause? I really don't want to use alot
of pl/sql to build this...
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