两个“分析师跟踪”的数据集放在附件test.rar
希望高手指教,非常感谢
Data test1;
x="aaa";
y="bbbbb";
run;
data test2;
x="cccccccccc";
y="ddd";
run;
/* 找出每个字符型变量的最大长度;*/
proc sql noprint;
select distinct cat(strip(name)," $",max(length)) into : varlen separated by " "
from dictionary.columns
where libname="WORK" and memname in ("TEST1","TEST2") and upcase(type)="CHAR"
group by name;
quit;
%put &varlen;
data test.test3;
length &varlen; /*Set length before set*/
set test1 test2;
run;



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