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取出某个月有几天
--取出某个月有几天 SELECT 32-DAY(GETDATE()+(32-DAY(GETDATE()))) SELECT 32-DAY(CAST(‘2000-02-22‘ AS DATETIME)+(32-DAY(CAST(‘2000-02-22‘ AS DATETIME))))
原文地址：http://www.cnblogs.com/davidhou/p/5065562.html
