[PL/SQL] 구구단 예제

declare
    v_i number :=2;
    v_j number :=1;
begin
    while v_i <10 loop
        dbms_output.put_line('         ');
        dbms_output.put_line('==========');
        dbms_output.put_line(v_i||'단');
        dbms_output.put_line('==========');
        
        v_j:=1;
        
        while v_j<10 loop
            dbms_output.put_line(v_i||'x'||v_j||'='||v_i * v_j);
            
            v_j:=v_j+1;
        end loop;
        
        v_i:=v_i+1;
    end loop;
end;
/