[应用]试用oracle的function

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近日写了一些vew,用到了自定义funciton,都是多表连接查询,也没有优化,留个记录以备后查;

sql 代码

-- create view report_service
create or replace view report_service as
  select UPPER(trim(to_char(c.aidcategoryid, '0x')) ||
             trim(to_char(t.aidserviceid, '0xxx'))) ||
       RPAD(t.servicename, 40) || RPAD(b.id, 2) ||
       RPAD(decode(y.id, 1, 3, 2, 2, 3, 1) || l.userlevelid, 5) || '1' ||
       RPAD(' ', 12) Service
  from co2servicelist  t,
       co2categorylist c,
       co2group        g,
       co2brand        b,
       co2grouplevel   l,
       co2grouptype    y
 where t.categorylistid = c.id
   and c.groupid = g.id
   and g.id = b.groupid
   and g.id = l.groupid
   and g.grouptypeid = y.id;


--create view report_molog
create or replace view report_molog as
select Rpad(t.msisdn, 14) || trim(decode(a.id, 1, 0, 3, 2, 4, 1))  ||
       Rpad(nvl(d.servicelistname, ' '), 40) ||
       trim(Rpad(to_char(t.creationdate, 'YYYY-MM-DD HH:MI:SS'), 19)) molog
  from co2transactionlog t, co2transactionlogdetail d, co2actiontype a
 where t.id = d.transactionlogid
   and d.actiontypeid = a.id
   and t.originid = 1
   and a.id in (1, 3, 4);


create or replace view report_mtlog as
 select Rpad(t.msisdn, 14) || trim(decode(a.id, 1, 0, 3, 2, 4, 1))  || Rpad(nvl(d.servicelistname, ' '), 40) ||
       trim(Rpad(to_char(t.creationdate, 'YYYY-MM-DD HH:MI:SS'), 19)) ||
       decode(t.erroroccured, 'N', '0', 'Y', '1') mtlog
  from co2transactionlog       t,
       co2transactionlogdetail d,
       co2actiontype           a,
       co2origin               b
 where t.id = d.transactionlogid
   and d.actiontypeid = a.id
   and t.directionid = 2
   and b.id = t.originid
   and a.id in (1, 3, 4)  ;

-- create view for user
create or replace view REPORT_USER as
  select RPAD(t.msisdn, 14) || RPAD(b.id, 2) ||
       RPAD(decode(p.id, 1, 3, 2, 2, 3, 1) || l.userlevelid, 5) ||
       RPAD(t.imsi, 16) || RPAD(c.cardproviderid, 2) ||
       RPAD(c.protocolversionid, 3) || Rpad(c.cardbatchid, 2) ||
       RPAD(nvl(query_user_menu(c.id),' '), 500) userinfo
  from co2user       t,
       co2card       c,
       co2grouplevel l,
       co2group      g,
       co2grouptype  p,
       co2brand      b
 where t.cardid = c.id
   and c.grouplevelid = l.id
   and l.groupid = g.id
   and g.id = b.groupid
   and g.grouptypeid = p.id;

--create function for concat AID string
create or replace function query_user_menu(id in varchar2) return varchar2 is
  Result varchar2(500);
  c_id   varchar2(500);
  a_id   number;
  cursor region_cur is
    select t.servicelistid, t.profilestate, t.isopen
      from co2currentserviceprofile t
     where t.cardid = id;
begin

  for my_cur in region_cur loop
    select t.aidserviceid, UPPER(trim(to_char(c.aidcategoryid, '0x')))
      into a_id, c_id
      from co2servicelist t, co2categorylist c
     where my_cur.servicelistid = t.id
       and t.categorylistid = c.id;
    if c_id is not null and a_id is not null then
      if my_cur.profilestate = 'Y' then
        a_id := a_id + 32768;
      end if;
      if my_cur.isopen = 'Y' then
        a_id := a_id + 1024;
      end if;
      a_id   := a_id + 16384;
      Result := CONCAT(Result, c_id);
      Result := concat(Result, UPPER(trim(to_char(a_id, '0xxx'))));
      Result := concat(Result, '|');
    end if;
  end loop;

  return(Result);
end query_user_menu;
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