e.g: 
  CREATE OR REPLACE VIEW V_WF_TODOLIST AS
     select c.process_def_id, c.process_def_name, a.action_def_id,
       a.work_item_id,  a.bae007,      a.action_def_name,
       a.state,     a.pre_wi_id,    a.work_type,
       a.operid,     a.x_oprator_ids,  b.process_key_info,
       to_char(to_date(a.start_time,  'yyyymmddhh24miss'),'yyyy-mm-dd hh24:mi:ss') as start_time,
       to_char(to_date(a.complete_time,'yyyymmddhh24miss'),'yyyy-mm-dd hh24:mi:ss') as complete_time,
       a.filter_opr, a.memo,a.bae002,a.bae003, a.bae006,c.x_action_def_ids
 from wf_work_item a, wf_process_instance b, wf_action_def c
  where a.action_def_id = c.action_def_id
  and b.process_def_id = c.process_def_id
  and a.bae007 = b.bae007
  and a.state in('0','2')

CREATE OR REPLACE VIEW V_WF_TODOLIST AS
  select c.process_def_id, c.process_def_name, a.action_def_id,
   a.work_item_id,  a.bae007,      a.action_def_name,
   a.state,     a.pre_wi_id,    a.work_type,
   a.operid,     a.x_oprator_ids,  b.process_key_info,
   to_char(to_date(a.start_time,  'yyyymmddhh24miss'),'yyyy-mm-dd hh24:mi:ss') as start_time_0,
   to_char(to_date(a.complete_time,'yyyymmddhh24miss'),'yyyy-mm-dd hh24:mi:ss') as complete_time_0,
   a.filter_opr, a.memo,a.bae002,a.bae003, a.bae006,c.x_action_def_ids
   from wf_work_item a, wf_process_instance b, wf_action_def c
   where a.action_def_id = c.action_def_id
   and b.process_def_id = c.process_def_id
   and a.bae007 = b.bae007
   and a.state in('0','2')
   

  CREATE OR REPLACE VIEW V_FW_BLANK_BULLETIN as
  select id,   bae001, operunitid, operunittype, unitsubtype, ifergency,
    title, content, digest,  duetime,   validto,   aae100,
    bae006, bae002, bae003,  id as colid,
    substr(digest,1,20) as digest2
   from fw_bulletin
  where duetime <= to_char(sysdate,'yyyymmddhh24miss')
   and (to_char(validto) >= to_char(sysdate,'yyyymmddhh24miss') or validto is null)
   and aae100 ='1'
  order by ifergency desc, id desc, duetime desc

  CREATE OR REPLACE VIEW V_FW_BLANK_BULLETIN as
  select * from (select id,   bae001, operunitid, operunittype, unitsubtype, ifergency,
   title, content, digest,  duetime,   validto,   aae100,
   bae006, bae002, bae003,  id as colid,
   substr(digest,1,20) as digest2
  from fw_bulletin
  where duetime <= to_char(sysdate,'yyyymmddhh24miss')
  and (to_char(validto) >= to_char(sysdate,'yyyymmddhh24miss') or validto is null)
  and aae100 ='1'
  order by ifergency desc, id desc, duetime desc)