sql排序 根据字段内容，以及根据内容进行计算排序

SELECT  * from 表名(table)
order by
case when
table.start <='2017-01-03' AND table.end  >='2017-01-03' then 1
when table.end <'2017-01-03' then 2
when table.start is null  AND table.end is null then 3
end,
case when table.type=1 then 1
when table.type=3 then 2
when table.type=2 then 3
when table.type=4 then 4
end;