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CREATE TABLE MM_END(MM_DATE DATETIME)
INSERT INTO MM_END VALUES ('2001-11-28')
INSERT INTO MM_END VALUES ('2001-11-29')
INSERT INTO MM_END VALUES ('2001-11-30')
INSERT INTO MM_END VALUES ('2001-12-01')
INSERT INTO MM_END VALUES ('2001-12-31')
SELECT DATEDIFF(MM, MM_DATE, MM_DATE + 1)
FROM MM_END
/*
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0
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*/
鏤
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