declare
v_banjing number: =&sv;
v_mianji number;
c_counter constant number: =3.14;
begin
v_mianji := c_counter * power(&sv, 2);
dbms_output.put_line ('mianji is '||v_mianji );
end;这样写对不?
v_banjing number: =&sv;
v_mianji number;
c_counter constant number: =3.14;
begin
v_mianji := c_counter * power(&sv, 2);
dbms_output.put_line ('mianji is '||v_mianji );
end;这样写对不?
v_banjing number;
v_mianji number;
c_counter number := 3.14;
begin
v_mianji := c_counter * power(&sv, 2);
dbms_output.put_line ('mianji is '||v_mianji );
end;
/