查询重复数据：

select fnumber, fname_l2, fdisplayname_l2

  from T_PM_MainMenuItem

 where fnumber in (select fnumber

                     from (select count(fnumber) as aa, fnumber

                             from T_PM_MainMenuItem

                            where 1 = 1

                            group by fnumber)

                    where aa >= 2)

存在脏数据，难以排查，无法升级，可以用如下方法处理：

   （1）备份客户化菜单

select * into T_PM_MainMenuItem_bak from T_PM_MainMenuItem;

   （2）查看备份是否成功，查出数据说明备份成功

select * from T_PM_MainMenuItem_bak 

   （3）删除客户化菜单

delete from  T_PM_MainMenuItem;

   （4）菜单升级,选全部升级

   （5）二开菜单恢复_找出需要恢复的菜单

    select * into T_PM_MainMenuItem_bak_dlp from  T_PM_MainMenuItem_bak where fnumber not in (select fnumber from T_PM_MainMenuItem);

   （6）二开菜单恢复_确认需要恢复的菜单

    select * from T_PM_MainMenuItem_bak_dlp 

   （7）二开菜单恢复_将需要恢复的菜单恢复

    insert into T_PM_MainMenuItem select * from T_PM_MainMenuItem_bak_dlp where fid not in (select fid from T_PM_MainMenuItem)