Oracle: Wie man mehrere Zählungen mit unterschiedlichen where-Klauseln am besten macht?

Question

Ich muss Zeilen mit unterschiedlichen where-Klauseln aus derselben Tabelle zählen. Im Folgenden ist die erforderliche Ausgabe von mir

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 

Jede Spalte seine eigenen Kriterien hat, so weit ich das folgende SQL haben, aber es sieht schon hässlich und nicht genau zurückgeben, was ich brauche

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 
); 

und das ist, was es zurückgibt

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

Irgendwelche Ideen, wie kann ich erreichen, was ich brauche?

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