StringBuffer hql= new StringBuffer(" select distinct doc from Missve doc left join doc.missiveTask task where 1=1");StringBuffer hql_count= new StringBuffer(" select count(distinct doc.docId) from Missve doc left join doc.missiveTask task where 1=1");???????????????????? 用的Oracle數(shù)據(jù)庫現(xiàn)在想再關(guān)聯(lián)一張表，不知道怎么寫了。請大神指教！一共有三張表，現(xiàn)在只關(guān)聯(lián)了兩張表，第三張表怎么關(guān)聯(lián)？？？？？？