how to put the name of a dataset as a column in SAS

问题

I have a very basic question in SAS. for example, if the dataset called 'a', how can I put 'a' as a new column into this dataset? Thank you very much

回答1:

Basically you can't. You can make a new dataset.

data new;
  set old;
  dsname='NEW';
run;

You can use the INDSNAME option on the SET statement to tell you which dataset you are reading data from.

data new ;
   length indsname dsname $41 ;
   set old indsname=indsname ;
   dsname = indsname ;
run;

Makes more sense when the SET statement has more than one dataset referenced. You need to define two variables because the one defined by the INDSNAME= option is automatically dropped.

来源：https://stackoverflow.com/questions/32187021/how-to-put-the-name-of-a-dataset-as-a-column-in-sas