我一直在关注这个[教程] [1]
[1]：http://www.codejava.net/frameworks/hibernate/hibernate-many-to-many-association-with-extra-columns-in-join-table-example我能够成功保存数据。现在我必须根据组和额外的列检索用户数据。例如，使用group =＆＃39; value＆＃39;和registered_date =＆＃39;日期值＆＃39;
有人可以指导我吗？
由于
答案 0 :(得分：1)
SELECT userGroup.group_id.name AS groupName, userGroup.user_id.username AS username FROM user_group userGroup WHERE userGroup.user_id = 1 AND userGroup.group_id.name = 'someGroupName' AND userGroup.register_date = '2017 March 23 23:34:45'