* Data creation;

data EmpsDK;
   input First $ Gender $ Country $;
   cards;
Lars	M	Denmark
Kari	F	Denmark
Jonas	M	Denmark
;
run;

data EmpsFR;
   input First $ Gender $ Country $;
   cards;
Pierre	M	France
Sophie	F	France
;
run;

* Concatenating Like structures;

data EmpsAll1;
   set EmpsDK EmpsFR;
run;

proc print data=EmpsAll1;
run;


* Data creation;

data EmpsCN;
   input First $ Gender $ Country $;
   cards;
Chang	M	China
Li	M	China
Ming	F	China
;
run;

data EmpsJP;
   input First $ Gender $ Region $;
   cards;
Takeharu	F	Japan
Nobuo		M	Japan
;
run;

* Concatenating unlike-structures;

data EmpsAll2;
   set EmpsCN EmpsJP;
run;

proc print data=EmpsAll2;
run;

* Using RENAME option;

data EmpsAll2;
   set EmpsCN EmpsJP(rename=(Region=Country));
run;

proc print data=EmpsAll2;
run;

* Interleaving (makes this like using MERGE with a BY variable);

data EmpsAll2;
   set EmpsCN EmpsJP(rename=(Region=Country));
   by First;
run;

proc print data=EmpsAll2;
run;