sqlserver制证列表排序

SELECTmi.documentno,substring(mi.documentno,0,CHARINDEX('-', mi.documentno)),substring(mi.documentno,CHARINDEX('-', mi.documentno)+1,len(mi.documentno))
FROM某表名mi
where mi.documentno is not null
order by cast(substring(mi.documentno,0,CHARINDEX('-', mi.documentno)) as int) asc,cast(REPLACE(REPLACE(REPLACE(substring(mi.documentno,CHARINDEX('-', mi.documentno)+1,len(mi.documentno)),'+',''),'f',''),'a','')  as int) asc