orcl 数据查询优先级

with a as (select '1' as id, '02' as trantype, '1000.00' as raiseamt, '1' as transtate from dual union   
select '2' as id, '02' as tranType, '1000.00' as raiseAmt, '2' as tranState from dual union   
select '3' as id, '02' as tranType, '1000.00' as raiseAmt, '1' as tranState from dual union   
select '4' as id, '02' as tranType, '1000.00' as raiseAmt, '3' as tranState from dual union   
select '5' as id, '02' as trantype, '1000.00' as raiseamt, '1' as transtate from dual 
) select id, trantype, raiseamt, transtate
from a
order by decode(transtate, '1', '1', '3', '0', '2', '2');