CASE WHEN 嵌套

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记录CASE WHEN 流程控制语句

SELECT
    'PAID' AS '维度',
    CASE
WHEN t2.PRINCIPAL_DUE IN ('1000', '1700') THEN
IF (
    SUM(t1.ORDER_AMT) >= t2.PRINCIPAL_DUE * 0.7,
    t2.PRINCIPAL_DUE * 0.7,
    SUM(t1.ORDER_AMT)
)
WHEN t2.PRINCIPAL_DUE IN ('1186') THEN
IF (
    SUM(t1.ORDER_AMT) >= 830,
    830,
    SUM(t1.ORDER_AMT)
)
WHEN t2.PRINCIPAL_DUE IN ('640', '1200') THEN
IF (
    SUM(t1.ORDER_AMT) >= t2.PRINCIPAL_DUE,
    t2.PRINCIPAL_DUE,
    SUM(t1.ORDER_AMT)
)
END  AS 'PAID'
FROM
    wmmm_loan.payment_order t1
LEFT JOIN wmmm_loan.loan_repay_plan t2 ON t1.LOAN_ID = t2.LOAN_ID
WHERE
    t2.PLAN_DUE_DATE = CURDATE() - INTERVAL 1 DAY
AND t2.MAX_OVERDUE_DAYS > 0
AND t1.ORDER_STATUS IN ('SUCCESSFUL')
AND t1.CREATE_TIME < CURDATE()