RE: tricky pivot query
- From: "Ken Naim" <kennaim@xxxxxxxxx>
- To: <ricks12345@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 11 Jun 2008 00:39:53 -0400
You can use case statements to get the data you want. I'm not sure I
understand your structure at this hour, but I'll give you an idea and maybe
you can fill in the rest.
Select day_id
Sum(Case when to_date(day_id,' YYYYMMDD') > trunc(sysdate,'MM') then
sales_rollup else 0 end) sales_1,
Sum(Case when to_date(day_id,' YYYYMMDD') between
add_month(trunc(sysdate,'MM'),-1) and trunc(sysdate,'MM')-1 then
sales_rollup else 0 end) sales_2,
Sum(Case when to_date(day_id,' YYYYMMDD') between
add_month(trunc(sysdate,'MM'),-2) and trunc(sysdate,'MM')-1 then
sales_rollup else 0 end) sales_3,
From .
Where ..
Group by day_id;
_____
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of Rick Ricky
Sent: Tuesday, June 10, 2008 11:29 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: tricky pivot query
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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