Question

我是新来的HQl查询请帮助我。实际上我的SQL Query有5个表，即COURSE，SKILLSET，TIMETABLE， INTREST，USER

select
 (select count(*) from intrest) AS 
    NoAttends,course.NAME,course.TYPE,user.FIRSTNAME,user.LASTNAME,skill.COURSE_CONT,
   skill.TEACH_EXP,tt.CLASS_DUR,tt.COURSE_DUR,tt.DATE_TIME from COURSE course 
   inner join SKILLSET skill on
   skill.course_id=course.s_id 
   inner join USER user on 
   user.s_id=skill.user_id 
   inner join TIMETABLE tt on
   tt.course_id=course.s_id
   where course.name IN ('course') 
   ORDER BY course.name LIMIT 10;

请帮帮我？

Answer 1

尝试使用下面的内容。。。。

SELECT t1.col1, t2.col2, t3.col3 
FROM Table1 t1 JOIN t1.someGroupMemebers t2 
JOIN t2.someUser t3 WHERE t3.username = 'blah blah'

Answer 2

使用JPA for Hibernate对于ex：

非常容易

    entityManager.createQuery("select cd from CourseDetailsVO cd join cd.course.keywords k where k.keyword in (:courseName) and cd.startDate between (:sDate) and (:eDate)", CourseDetailsVO.class);
setParameter("courseName", searchVO.getName())..
...

EntityManager将进行处理..

如何使用join编写Hibernate HQL查询？

2 个答案: