例如
%let id=1234567......;
data a;
id="&id";
run;
当宏变量id的长度超过一定长度的时候会出现警告
WARNING: The quoted string currently being processed has become more than 262 bytes long. You might have unbalanced quotation
marks.
并且在表a中 字段id没有被赋值,我%put id=&id 的时候 id可以完整的put出来,可是在表a中却没法赋值进去,假如id长度就是很长时怎么才能在表a中赋值成功呢