same var name on right and left side

[Ronein]

Hello

I want to convert  numeric to char.

I want to ask :

What is the reason that in sas we cannot write on left side of the equation same var name as in right side?

(Usually I am using another name on right side of equation and then use drop and rename.)

DATA t1;
input Store 1 Day $ 3 Sales 5-8;
CARDS;
2 M 2215
2 T 2458
2 W 1798
2 R 1692
2 F 2105
2 S 2847
	;
RUN;

DATA t2 ;
set t1;
Store=put(Store,1.);
RUN;

[andreas_lds · Accepted solution]

In sas the type of a variable is not dynamic, so the type of a variable is defined, it can't be changed.