Oracle: Jak zrobić wiele zliczeń z różnymi klauzulami, gdzie najlepiej?

Question

Mam wymóg liczenia wierszy z różnymi klauzulami where z tej samej tabeli. Poniżej znajduje się wyjście wymaga ode mnie

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 

Każda kolumna ma swoje własne kryteria, jak dotąd mam następujące SQL, ale to już wygląda brzydko i nie wrócić dokładnie co muszę

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 
); 

i to jest to, co zwraca

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

Wszelkie pomysły, w jaki sposób mogę osiągnąć to, czego potrzebuję?

Answer 1

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