Want to join three views..Please help me

Question

Dear Dude,
I have created three views. I have to join these three views. Please help me in this regard.
First view
CREATE OR REPLACE FORCE VIEW KPR
AS
(SELECT distinct CUREPRESS,
PRODUCTIONCODE,
SUM(SCHEDULE1+SCHEDULE2+SCHEDULE3) AS QTY
FROM ORGCURESCHEDULEDAY
GROUP BY CUREPRESS,
PRODUCTIONCODE
second view
create or replace view orgstartdt_vw as (
SELECT distinct A.CUREPRESS, A.PRODUCTIONCODE, B.QTY,MIN(A.YYYYMMDD) AS STARTDATE,
CASE
WHEN A.SCHEDULE1 = 0 AND A.SCHEDULE2 = 0 AND A.SCHEDULE3 >0 AND ROUND(30-A.SCHEDULE3/A.CURECAPACITY*24,0)>24 THEN
          ROUND(30-(A.SCHEDULE3/A.CURECAPACITY*24),0)-24
WHEN A.SCHEDULE1 = 0 AND A.SCHEDULE2 = 0 AND A.SCHEDULE3 >0 AND ROUND(30-A.SCHEDULE3/A.CURECAPACITY*24,0)<=24 THEN
          ROUND(30-A.SCHEDULE3/A.CURECAPACITY*24,0)
WHEN A.SCHEDULE1 = 0 AND A.SCHEDULE2 >0 AND A.SCHEDULE3 >0 THEN
ROUND(22-A.SCHEDULE2/A.CURECAPACITY*24,0)
WHEN A.SCHEDULE1 > 0 AND A.SCHEDULE2 >0 AND A.SCHEDULE3 >0 THEN
ROUND(14-A.SCHEDULE1/A.CURECAPACITY*24,0)
END startdate1
FROM ORGCURESCHEDULEDAY A,KPR B
WHERE A.PRODUCTIONCODE=B.PRODUCTIONCODE
AND A.CUREPRESS=B.CUREPRESS
GROUP BY A.CUREPRESS,A.PRODUCTIONCODE,B.QTY,A.SCHEDULE1,A.SCHEDULE2,A.SCHEDULE3,A.CURECAPACITY)
ORDER BY MIN(A.YYYYMMDD)
Third view
CREATE OR REPLACE VIEW ORGENDDT_VW AS (
SELECT distinct A.CUREPRESS, A.PRODUCTIONCODE, B.QTY,MAX(A.YYYYMMDD) AS ENDDATE,
CASE
WHEN SCHEDULE1> 0 AND SCHEDULE2> 0 AND SCHEDULE3>0 AND ROUND(22+SCHEDULE3/CURECAPACITY*24,0)>24 THEN
          ROUND(22+(SCHEDULE3/CURECAPACITY*24)-24,0) --(INCREMENT DATE BY 1)
WHEN SCHEDULE1 = 0 AND SCHEDULE2= 0 AND SCHEDULE3>0 AND ROUND(22+SCHEDULE3/CURECAPACITY*24,0)<=24 THEN
          ROUND(22+SCHEDULE3/CURECAPACITY*24,0)
WHEN SCHEDULE1> 0 AND SCHEDULE2>0 AND SCHEDULE3=0 THEN
ROUND(14+SCHEDULE2/CURECAPACITY*24,0)
WHEN SCHEDULE1> 0 AND SCHEDULE2=0 AND SCHEDULE3=0 THEN
ROUND(6+(SCHEDULE1/CURECAPACITY*24),0)
END ENDDATE1
FROM ORGCURESCHEDULEDAY A,KPR B
WHERE A.PRODUCTIONCODE=B.PRODUCTIONCODE
AND A.CUREPRESS=B.CUREPRESS
GROUP BY A.CUREPRESS,A.PRODUCTIONCODE,B.QTY,A.SCHEDULE1,A.SCHEDULE2,A.SCHEDULE3,A.CURECAPACITY)
ORDER BY MAX(A.YYYYMMDD) desc
Please help me in this regard..!!
Regards
KPR

Answer 1

Hi Balaji,
Thanks for your prompt reply. The exact scenario is ..!!
I have curepress, productioncode,date (in yyyymmdd format).
1. I have to find out total qty for each productioncode,curepress. total qty means sch1 + sch2 + sch3. I have these columns also.
2. I have to findout startdate (min. date) for every curepress,productioncode.
3. I have to findout enddate (max. date) for every curepress,productioncode.
Based on these scenarios, I have implemented three views. But I am not getting proper result. because, first view having 501 rows. So, I have to get 501 start date rows, 501 enddate rows also. but second and third views are giving more rows.
please help me...!!
regards
KPR