In SAS, you can perform one-to-one reading with the help of multiple SET statements. It combines observations from two or more data sets into a single observation in a new data set.
DATA dat1;INPUT id v1 v2;CARDS;1 10 1002 15 1503 20 200;DATA dat2;INPUT id v3 v4;CARDS;1 1000 100002 1500 150003 2000 200004 800 30000;RUN;DATA dat3;set dat1;set dat2;RUN;
|SAS : Multiple SET Statements|
The observations are combined based on their relative position in the data set.