作者:whisper
链接:https://www.proprogrammar.com/article/937
声明:请尊重原作者的劳动,如需转载请注明出处
配置文件
sessionFactory session transction
save persist(抛异常) get load(抛异常) update saveOfUpdate delete evict flush refresh
doWork
继承关系:subclass一张表(辨别者列),joint-subclass两张表,union-subclass两张表(子表有父表所有信息,会有大量重复)(学生和人)
关联关系:一对一(部门经理和部门),一对多(部门和部门员工),多对多(学生与课程)
HQL(hibernate query language) QBC(query by criteria) QBE(query by example)
HQL sql语句查询:语句+参数+查询 createQuery 分页查询 命名查询 投影查询
QBC 条件查询:实体+条件+查询 createCriteria
native query: createSQLQuery
亲爱的读者:有时间可以点赞评论一下
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