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翻译:MySQL不能指定更新的目标表在FROM子句 源SQL语句: [sql] view plain copy print? delete from t_official_sys_user where USER_NAME IN(SELECT USER_NAME FROM t_official_sys 阅读全文
posted @ 2016-10-12 17:19
沧海一滴
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isAssignableFrom()方法是从类继承的角度去判断,instanceof()方法是从实例继承的角度去判断。isAssignableFrom()方法是判断是否为某个类的父类,instanceof()方法是判断是否某个类的子类。 1. Class.isAssignableFrom()方法Cl 阅读全文
posted @ 2016-10-12 13:25
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org.springframework.jdbc.datasource.DataSourceUtils org.mybatis.spring.transaction.SpringManagedTransaction org.mybatis.spring.SqlSessionUtils 阅读全文
posted @ 2016-10-12 09:57
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