PostgreSQL中from的等价关系

Z时代
2024-01-10
分类：问答

我与hibernate和甲骨文一起工作

我使用此代码：

 if (null != sessionFactory) {
            Session s = currentSession.get();
            if ((null == s) || !s.isOpen()) {
                s = sessionFactory.openSession();
                currentSession.set(s);
            } else {
                try {
                    HibernateWork hibernateWork = new HibernateWork("SELECT 1 FROM DUAL");
                    s.doWork(hibernateWork);
                } catch (Exception e) {
                    s = sessionFactory.openSession();
                    currentSession.set(s);
                }
            }
            return s;
        }