My questions consists in the utility of a permanent informat in a sas data
I have defined a permanent date informat and then I updated the data set with
another data set where the same variable is in a different informat. I
expected the update to fail,
because of different informats but it actualy happenned without any problem.
So, my question is (more a theoretical one) is: what are the advantages (if
of defining a permanent informat compared to a temporary informat?
how can i use in future operations this permanent informat in my advantage?