query=entityManager.createQuery(" select a.birthDate from PersonalDetailsDomain a where a.empCode=(select b.empCode from User b where b.userId=?)");
query.setParameter(1,userId);
Date dob =(Date)query.getSingleResult();
例外:
java.lang.IllegalArgumentException: org.hibernate.QueryException: 无法解析属性:empCode of: com.erp.hrms.User [ select a.birthDate from com.erp.hrms.newjoinee.PersonalDetailsDomain a where a.empCode=(select b.empCode 来自 com.erp.hrms.User b where b.userId=?)]