Proc Compare - same IDs?

PHOTO

Sun Oct 05 2025 22:00:19 GMT+0000 (Coordinated Universal Time)

Proc Compare Base=project.potential_cohort Compare=project.OLD_potential_cohort;
   ID PatID;
   Var PatID NVAF;
run;

@ddover

input text date rename efficiently long variable names cat catx cats clear log and output division by zero Proc Compare - same IDs?