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所有查询需要实现像SQL查询:如何写联盟查询DSL
SELECT A.class, A.section
FROM
STUDENT A
INNER JOIN DEPARTMENT on A.student_id = B.id
WHERE DEPT_NBR is not null
UNION ALL
SELECT A.class, A.section
FROM
TEACHER A
INNER JOIN DEPARTMENT on A.teacher_id = B.id
WHERE DEPT_NBR is not null
我怎么能写与QueryDSL这样的说法? (我没有使用任何JPA)。任何帮助/提示非常感谢!