merge or sql
http://crackman.net/?p=312

tell me the answer diectly ok?thanksyou 2# crackman

遗憾 我对这个不熟悉

data a(index=(x));
input x x1 x2 x3 @;
datalines;
1 2 6 7 8
3 7 8 9 9
2 8 9 0 0
4 7 8 9 0
9 7 8 9 9
5 0 9 8 6
8 5 6 7 8
6 4 3 2 1
;
data b(index=(x));
input x x4 x5 x6@;
datalines;
1 2 6 7 8
3 7 8 9 9
6 8 9 0 0
4 7 8 9 0
8 7 8 9 9
5 0 9 8 6
9 5 6 7 8
7 4 3 2 1
;
data crackman;
merge a b;
by x;
run;

两个合并我也会，关键是怎么用proc sql合并多个数据集谢谢 5# crackman