trunc和round與負參數相同嗎?sql中的trunc和round函數
SQL> select round(123456.76,-4) from dual;
ROUND(123456.76,-4)
-------------------
120000
SQL> select trunc(123456.76,-4) from dual;
TRUNC(123456.76,-4)
-------------------
120000
肯定。謝謝...明白了:) – lakshganga
@lakshganga:請注意,如果答案解決了您的問題,您可以[正式接受](http://meta.stackexchange.com/questions/5234/how-does-接受答案 - 「接受答案如何工作?」)。 –