MySQL中遇到的几种报错及其解决方法 1.[Err] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''xxx'' at line 1 解决方法:将所有的" '' "换成" ·· "(将所有的英文单引号换为Tab键上面的那个点号)…
报错信息 hql> select a from GDXMZD a[2019-08-29 13:45:01] org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment][2019-08-29 13:45:01] java.lang.RuntimeException: org.hibernate.Hi…
数据访问失败 出错代码: cardy.add(Restrictions.isNotEmpty("grade.cardtype.cardtype")); try...catch之后发现报了一个更细节的错: does not reference a collection 原因: isNotEmpty( )需要对象的属性是集合,而cardtype只是一个对象引用 解决: 用isNotNull( ) 方法 控制台打印sql时也多了一个条件: this_.CARDTYPE is not n…