- data a;
- input code value;
- cards;
- 1 56
- 2 87
- 3 .
- 4 .
- ;
- run;
- data b;
- input code;
- cards;
- 2
- 3
- ;
- run;
- data c;
- merge a b(in=in);
- by code;
- if not in;
- run;
还有个SQL的方法,但我不知道怎么把所有column都keep下来:
- proc sql noprint;
- create table d as
- select * from a
- except corr
- select * from b
- ;
- quit;