请各位大侠们帮帮忙吧

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楼主: leon1239
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1618
5
求助merge,请各位大侠帮忙 |
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高中生 82%
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回帖推荐you can use data step to merge one to many.
but proc sql for many to many
data test1;
input a b c;
datalines;
1 2 1
13 9 1
1 2 2
;
run;
data test2;
input c d e;
datalines;
1 7 3
1 19 12
3 4 5
;
run;
proc sql;
create table test3 as
select test1.*, d, e
from test1, test2
where test1.c=test2.c;
quit;
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