transpose efficiently with proc sql

Question

i would like to know if it is possible to transpose efficiently from wide to long using proc sql in sas.

I\'m aware that proc transpose is much quicker that the met

Answer 1

I actually did something just like this today. Try doing this,

proc transpose data = ORIGINAL_DATA;
        out = NEW_DATA;
    by id;
    VAR A-D;
run;

I think this should work.