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SELECT A.信用卡类型, A.用户数, B.累计金额
FROM (SELECT CUSTOM.F003 AS 信用卡类型, Count(CUSTOM.F002) AS 用户数
FROM CUSTOM
GROUP BY CUSTOM.F003
) A
LEFT JOIN
(SELECT CUSTOM.F003 AS 信用卡类型, Sum(MONEYS.F003*IIf(MONEYS.F004='存',1,-1)) AS 累计金额
FROM CUSTOM
INNER JOIN MONEYS ON CUSTOM.F001=MONEYS.F001
GROUP BY CUSTOM.F003
) B ON B.信用卡类型 = A.信用卡类型;
SELECT CUSTOM.F003 AS 信用卡类型, Count(CUSTOM.F002) AS 用户数, Sum(MONEYS.F003 * iif(MONEYS.F004 = '存', 1, -1)) AS 累计金额
FROM CUSTOM INNER JOIN MONEYS ON CUSTOM.F001 = MONEYS.F001
GROUP BY CUSTOM.F003;
SELECT CUSTOM.F001 AS 卡号, CUSTOM.F002 AS 储户姓名, Sum(MONEYS.F003 * iif(MONEYS.F004 = '存', 1, -1)) AS 存款金额
FROM CUSTOM INNER JOIN MONEYS ON CUSTOM.F001 = MONEYS.F001
GROUP BY CUSTOM.F001, CUSTOM.F002;