%let Mv=shoes;%macro PRODUCT(Mv=bicycles);%let Mv=clothes;%mend;%PRODUCT(Mv=tents)%put Mv is &Mv;
Why is the value o MV is shoes?? Please explain
Because you have both global and local variables.
Since the macro is finished when you request a PUT it uses the global version - which is the first assignment.
Yeah. The local symbol table would be destroied after running the macro.
So you only get the global symbol value.