如何在proc sql产生一个序数的variable

shiyiming

我记得好像有个函数maxequal什么的能在proc sql里产生一个序数变量，1，2，3，4，，，，就正如data step里x=_n_;
哪位知道，先谢谢了！

shiyiming

[code:2bnvl0th]
data one;
do i=1 to 100 by 2;
   output;
end;
run;

proc sql noprint;
  create table two as
  select i,monotonic() as id
  from one;
quit;
[/code:2bnvl0th]