Oracle三种循环(For、While、Loop)实现九九乘法表

declarei int:=0;j int:=0;beginfor i in 1..9 loop  for j in 1..i loop    Dbms_Output.put(i||'*'||j||'='||i*j);    dbms_output.put(' ');  end loop;  dbms_output.new_line;end loop;end;

declarei int:=1;j int:=1;begin while i<=9 loop  j:=1;  while j<=i loop   Dbms_Output.put(i||'*'||j||'='||i*j);   dbms_output.put(' ');   j:=j+1;   end loop;    dbms_output.new_line;   i:=i+1;  end loop;  end;

declare i int:=1;j int:=1;beginlooploop  Dbms_Output.put(i||'*'||j||'='||i*j);  dbms_output.put(' '); j:=j+1; exit when j>i; end loop; dbms_output.put_line(''); i:=i+1; j:=1; exit when i>9; end loop; end;