1. data tmp;
do i=1 to 10;
output;
end;
run;
proc print data=tmp;

2. data tmp (password=XXX);
do i=1 to 10;
output;
end;
run;
proc print data=tmp;

3. data tmp (alter=XXX write=XXX);
do i=1 to 10;
output;
end;
run;
proc print data=tmp;

4. /* create some data to "protect"*/
libname pt "&path\tmp\protect";
proc copy in=tmp out=pt;
select body;
select nh1;
run;

5. Protect an existing dataset.
/*protecting */
data tmp;
do i=1 to 10;
output;
end;
run;
proc contents data=tmp;
proc datasets lib=work;
modify tmp (alter=XXX write=XXX);

6. /* create some data to "protect"*/
libname pt "&path\tmp\protect";
proc copy in=tmp out=pt;
select body;
select nh1;
run;

7. A simple macro %macro protect(lib,dsn,pass); proc datasets lib=&lib;
modify &dsn (alter=&pass write=&pass);
run;
%mend protect;

8. proc contents data=pt._all_;
run;
%protect(pt,body,XXX)
%protect(pt,nh1,XXX)

9. %macro passlib(lib,password);
%let uplib=%sysfunc(upcase(&lib));
proc sql;
select count(*) into :numfiles
from dictionary.tables
where libname="&uplib" and
not (protect contains "WA") ;
select memname into :file1-
quit;
proc datasets lib=&lib;
%do i=1 %to &numfiles;
modify &&file&i (alter=&password write=&password);
%end;
%mend;