help me to create a simple calculator by pl sql
936860May 11 2012 — edited May 11 2012hey
please I wanna helop to to create a simple calculator by pl sql
i used this code but it doesn't work!
declare
n1 number;
n2 number;
cal varchar2(20);
cc number;
begin
n1:=&n1;
n2:=&n2;
cal:=&cal;
if cal = '+' then
cc:=n1+n2;
elsif cal = '-' then
cc:=n1-n2;
elsif cal = '*' then
cc:=n1*n2;
elsif cal = '/' then
cc:=n1/n2;
else
dbms_output.put_line('error');
end if;
dbms_output.put_line(cc);
end;
/