java - 如何编写 Hibernate HQL 查询来删除所有 "grand children"元素？

Question

我有学校，其中包含团体，其中包含学生。

我想删除特定学校的所有学生。

在 SQL 中我可以编写以下查询:

DELETE FROM students1 
WHERE students1.group_id IN 
      (SELECT id FROM group1 WHERE group1.school_id = :school_id)

如何将此 SQL 查询转换为 Hibernate HQL？

我使用H2数据库引擎。

(我的真实查询比较复杂，简单的学校级联删除不适合我)。

Answer 1

工作脚本如下:

DELETE FROM Student AS s
WHERE s IN
    (SELECT s FROM Student AS s WHERE s.group IN
        (SELECT g FROM Group AS g WHERE g.school IN
            (SELECT s FROM School s WHERE s.id = :schoolId)))

感谢doc_180的评论