多条select语句的合并

1 select 
2   (select count(*) from DW_MARK_FXJS.F_GS_YCXJJDCSY@new_zgxt  where ssq>='201401' and ssq<'201701') ,
3   (select count(distinct swglm) from DW_MARK_FXJS.F_GS_YCXJJDCSY@new_zgxt  where ssq>='201401' and ssq<'201701') ,
4   (select max(ssq) from DW_MARK_FXJS.F_GS_YCXJJDCSY@new_zgxt )
5 from dual

这样就不用傻傻的执行三次sql了