HQL语句

1.hql更新   
   String hql = "update PhUser set realName=?";   
   int row=this.getSession().createQuery(hql).setString(0, "小李想").executeUpdate();   
   PhUser 类名    
2.hql删除   
   String hql = "delete PhUser a where a.userId=2";   
   int row=this.getSession().createQuery(hql).executeUpdate();   
   还有个这种的格式:   
   final String hql = "delete PhRoleFunction as a where a.roleId = "  
     + roleId;   
   this.getHibernateTemplate().execute(new HibernateCallback() {   
    public Object doInHibernate(Session session)   
      throws HibernateException, SQLException {   
     return session.createQuery(hql).executeUpdate();   
    }   
   });更新也可以写成这样的格式   
3.hql单表查询   
   String hql = "from PhUser a where a.userId=" + userId;   
   List list = this.getHibernateTemplate().find(hql);   
4.hql多表查询   
   (1)String hql = "select new map(a.CUId as CUId,a.unitName as unitName,b.CUFId as CUFId,b.UFName as UFName) 
   from PhCorrelativeUnit a,PhCorrelativeUnitFunction b where a.CUId=b.CUId";   
   List list = this.getHibernateTemplate().find(hql);   
   多个表的字段放到map中,map的键值就是as后面的别名,如果没有as就是字段名   
   (2) String hql = "SELECT NEW COM.PHANTOM.APPEAL.ACTION.BEAN.DEALPAPER(A.ID AS ID, A.BILLID AS BILLID, A.STATE AS STATE, A.CREATOR AS CREATOR, A.CREATETIME AS CREATETIME , 26. B.EVENTCONTENT AS EVENTCONTENT , C.REALNAME AS REALNAME, B.BILLCODE AS BILLCODE, 27. B.CITNAME AS CITNAME ) 
  FROM PHDEALBILL A
      ,PHACCEPTBILL B
      ,PHUSER C 28.WHERE A.DEPARTMENTID="+ billid+ "
   AND A.STATE = 0
   AND A.BILLID = B.BILLID 29.AND A.CREATOR = C.USERID
 ORDER BY A.BILLID
";   
    return this.getHibernateTemplate().find(hql);   
   另外就是写一个类,对应你要查询的字段,这里的类名是new com.phantom.appeal.action.bean.DealPaper,里面对应查询的字段名   
5.得到记录数   
   String hql = "select count(*) from PhUser";   
   List list = this.getHibernateTemplate().find(hql);   
   return ((Long) list.get(0)).intValue();