Hibernate中 Restrictions.or()和Restrictions.disjunction()区别?

来源：学生作业帮编辑：神马作文网作业帮分类：综合作业时间：2024/11/12 23:42:21

Hibernate中 Restrictions.or()和Restrictions.disjunction()区别?
请问：
Restrictions.or()和Restrictions.disjunction()除了语法上的区别还有什么地方不同呢?

:QBE (Query By Example)
Criteria cri = session.createCriteria(Student.class);
cri.add(Example.create(s)); //s是一个Student对象
list cri.list();
实质：创建一个模版,比如我有一个表serial有一个 giftortoy字段,我设置serial.setgifttoy("2"),
则这个表中的所有的giftortoy为2的数据都会出来
2:QBC (Query By Criteria) 主要有Criteria,Criterion,Oder,Restrictions类组成
session = this.getSession();
Criteria cri = session.createCriteria(JdItemSerialnumber.class);
Criterion cron = Restrictions.like("customer",name);
cri.add(cron);
list = cri.list();
比较运算符
HQL运算符 QBC运算符含义
= Restrictions.eq() 等于
Restrictions.not(Exprission.eq()) 不等于
> Restrictions.gt() 大于
>= Restrictions.ge() 大于等于
< Restrictions.lt() 小于

Hibernate中 Restrictions.or()和Restrictions.disjunction()区别? 英语翻译The removal of restrictions to settling down or claiming 英文翻译The restrictions or disclosures set forth herein shall n impose restrictions for sanitary 机票上的NONENDO/NONREF/FARE RESTRICTIONS hibernate.cfg.xml和hibernate.properties的区别机票上标注的：carrier restrictions apply fees apply 英语翻译Despite all these production practices,restrictions,and 英语翻译Restrictions on trading involving insider information ap The recent relaxing of travel restrictions under the Obama a Some restrictions should apply 为什么不用被动语态? countries usually impose restrictions on free foreign trade