Oracle: 절이 다른 여러 개의 카운트를 수행하는 가장 좋은 방법은 무엇입니까?

Oracle: 절이 다른 여러 개의 카운트를 수행하는 가장 좋은 방법은 무엇입니까?

같은 테이블의 where 절이 다른 행을 카운트해야 합니다.다음은 제가 필요로 하는 출력입니다.

Bu   #A   #B  #C  #D #E #F #G  #H  #J  #K  #L   #M  #N
GB01 267  284 84  45 35 32 458 801 111 899 892  56  99
NL01 132  844 65  28 26 12 627 321 56  681 1062 127 128

각 열마다 기준이 있기 때문에 지금까지 다음 SQL을 가지고 있지만 이미 보기 흉하고 필요한 항목을 정확히 반환하지 않습니다.

SELECT *  FROM (
  SELECT
    c_unit_code,
    COUNT(*) AS ADVICE_EXPORT,
    0 AS CONFIRMATION_EXPORT,
    0 AS ISSUANCE_STANDBY
  FROM EXIMTRX.EPLC_MASTER
  WHERE (CLS_FLG NOT LIKE 'YES' OR CLS_FLG IS NULL) AND (
    form_of_lc LIKE 'IRREVOCABLE' OR
    form_of_lc LIKE 'REVOCABLE' OR
    form_of_lc LIKE 'IRREVOCABLE TRANSFERABLE' OR
    form_of_lc LIKE 'REVOCABLE TRANSFERABLE') AND our_eng LIKE 'ADVICE'
    GROUP BY c_unit_code
UNION
  SELECT
    c_unit_code,
    0 AS ADVICE_EXPORT,
    COUNT(*) AS CONFIRMATION_EXPORT,
    0 AS ISSUANCE_STANDBY
  FROM EXIMTRX.EPLC_MASTER
  WHERE (CLS_FLG NOT LIKE 'YES' OR CLS_FLG IS NULL) AND (
    form_of_lc LIKE 'IRREVOCABLE' OR
    form_of_lc LIKE 'REVOCABLE' OR
    form_of_lc LIKE 'IRREVOCABLE TRANSFERABLE' OR
    form_of_lc LIKE 'REVOCABLE TRANSFERABLE') AND our_eng LIKE 'CONFIRMATION'
    GROUP BY c_unit_code
UNION
  SELECT 
    c_unit_code,
    0 AS ADVICE_EXPORT,
    0 AS CONFIRMATION_EXPORT,
    COUNT(*) AS ISSUANCE_STANDBY
  FROM EXIMTRX.EPLC_MASTER
  WHERE (CLS_FLG NOT LIKE 'YES' OR CLS_FLG IS NULL) AND (
    form_of_lc LIKE 'IRREVOCABLE STANDBY' OR
    form_of_lc LIKE 'REVOCABLE STANDBY' OR
    form_of_lc LIKE 'IRREVOC TRANS STANDBY')
    GROUP BY c_unit_code
);

그리고 이것이 반환되는 것입니다.

GB01    0   0   17
GB01    0   39  0
GB01    80  0   0
NL01    0   0   32
NL01    0   159 0
NL01    341 0   0

제가 필요로 하는 것을 어떻게 이룰 수 있을까요?

  SELECT
    c_unit_code,
    COUNT(case when YOUR_CONDITIONS_FOR_ADVICE_EXPORT then 1 end) AS ADVICE_EXPORT,
    COUNT(case when YOUR_CONDITIONS_FOR_CONFIRMATION_EXPORT then 1 end) AS CONFIRMATION_EXPORT,
    COUNT(case when YOUR_CONDITIONS_FOR_ISSUANCE_STANDBY then 1 end) AS ISSUANCE_STANDBY
  FROM EXIMTRX.EPLC_MASTER
  GROUP BY c_unit_code

언급URL : https://stackoverflow.com/questions/15431698/oracle-how-to-do-multiple-counts-with-different-where-clauses-the-best-way