一条简单sql语句，按排序删除

按照时间排序，删除前面的几行，两种写法：

1、

delete from t from (select top(10)* from table1 order by time desc) as t

2、
delete  t  from (select top(10) * from table1 order by time desc ) as t

写法不一样，t其实都是一样。