여러 개의 oracle select sql을 하나의 뷰에 결합하는 방법은 무엇입니까?

Question

나는이 선택의 결과를 하나의 견해로보고 싶습니다. 공통 컬럼은 RUNID이지만, 오른쪽 테이블의 결과는 항상 존재하지는 않습니다. 그래서 그것은 비어 있어야합니다. 나는이 모든 선택이 하나의 선택으로 합쳐질 수 있다고 생각하며, RUNID를 다른 기준에 따라 각각의 수에 전달합니다.

--COUNT OF S16 ELIGIBLE ACCOUNTS 
SELECT PDDETAIL.RUNID, COUNT(*) AS "S16 ELIGIBLE ACCOUNTS" 
FROM  PDDETAIL 
LEFT JOIN PDSTAGES ON (PDDETAIL.PDID = PDSTAGES.PDID AND PDDETAIL.CUST_ID = PDSTAGES.CUST_ID) 
WHERE  PDSTAGES.PDSTAGE = 'S16ELIGIBLE' 
GROUP BY PDDETAIL.RUNID 
ORDER BY PDDETAIL.RUNID ASC 
; 

--COUNT OF S16 MTO SUBMITTED 
SELECT PDDETAIL.RUNID,COUNT(*) AS "S16 MTO SUBMITTED" 
FROM  PDDETAIL 
LEFT JOIN PDSTAGES ON (PDDETAIL.PDID = PDSTAGES.PDID AND PDDETAIL.CUST_ID = PDSTAGES.CUST_ID) 
WHERE  PDSTAGES.PDSTAGE = 'S16MTOREFRESHSUBMITTED' 
GROUP BY PDDETAIL.RUNID 
ORDER BY PDDETAIL.RUNID ASC 
; 

--COUNT OF S16 MTO RETURN FAILED 
SELECT PDDETAIL.RUNID,COUNT(*) AS "S16 MTO FAILED" 
FROM  PDDETAIL 
LEFT JOIN PDSTAGES ON (PDDETAIL.PDID = PDSTAGES.PDID AND PDDETAIL.CUST_ID = PDSTAGES.CUST_ID) 
WHERE  PDSTAGES.PDSTAGE = 'S16MTORETURNFAILED' 
GROUP BY PDDETAIL.RUNID 
ORDER BY PDDETAIL.RUNID ASC 
; 

Answer 1

SELECT  
PDDETAIL.RUNID, 
COUNT(CASE WHEN PDSTAGES.PDSTAGE = 'S16ELIGIBLE' THEN 1 END) AS "S16 ELIGIBLE ACCOUNTS", 
COUNT(CASE WHEN PDSTAGES.PDSTAGE = 'S16MTOREFRESHSUBMITTED' THEN 1 END) AS "S16 MTO SUBMITTED", 
COUNT(CASE WHEN PDSTAGES.PDSTAGE = 'S16MTORETURNFAILED' THEN 1 END) AS "S16 MTO FAILED" 
FROM  PDDETAIL 
LEFT JOIN PDSTAGES ON (PDDETAIL.PDID = PDSTAGES.PDID AND PDDETAIL.CUST_ID = PDSTAGES.CUST_ID) 
GROUP BY PDDETAIL.RUNID 
ORDER BY PDDETAIL.RUNID ASC;