Java DataException无法执行查询

嗨，我在执行以下查询时收到DataException：

 GET_USERLIST_BY_GROUP1 =   "   SELECT usr.user_id,
       usr.login_name
FROM user_info usr
WHERE usr.user_id IN
    (SELECT g.user_id
     FROM group_privilege_details g
     WHERE g.group_id IN
         (SELECT gp.group_id
          FROM group_privilege_details gp,
               user_info u
          WHERE u.user_id=gp.user_id
            AND u.login_name=?)
     GROUP BY g.user_id HAVING count(g.group_id) =
       (SELECT count(g.group_id)
        FROM group_privilege_details gr,
             user_info us
        WHERE us.user_id=gr.user_id
          AND us.login_name=?))
  AND usr.login_name!=?"

请查找hibernate代码：

qry = hiberSession.createSQLQuery(GET_USERLIST_BY_GROUP1);
qry.setParameter(0, argUsername);
qry.setParameter(1, argUsername);
qry.setParameter(2, argUsername);
lstUsernamebyGroup = qry.list();

请找出我的例外：

2011-10-22 12:42:55,352 INFO  [STDOUT] (http-10.128.15.228-8080-5) org.hibernate.exception.DataException: could not execute query

2011-10-22 12:42:55,352 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:77)

2011-10-22 12:42:55,352 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)

2011-10-22 12:42:55,353 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.loader.Loader.doList(Loader.java:2223)

2011-10-22 12:42:55,353 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)

2011-10-22 12:42:55,353 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.loader.Loader.list(Loader.java:2099)

2011-10-22 12:42:55,354 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)

2011-10-22 12:42:55,354 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)

2011-10-22 12:42:55,354 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)

2011-10-22 12:42:55,355 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)

2011-10-22 12:42:55,355 INFO  [STDOUT] (http-10.128.15.228-8080-5)  at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)

---

我看到的唯一一点与您的SQL稍有出入的是，您使用“！=”表示不相等。正式的非相等SQL运算符为“”。Postgres也支持“！=”，但Hibernate在这方面可能有问题。

您丢失了异常消息，这无疑会解释问题所在……是否没有嵌套异常？我希望会有。。。