MySQL QUARTER()函數
MySQL QUARTER()函數實用實例代碼教學
QUARTER(date)
返回的一年日期，取值範圍為1至4季度。
mysql> SELECT QUARTER('98-04-01');
+---------------------------------------------------------+
| QUARTER('98-04-01') |
+---------------------------------------------------------+
| 2 |
+---------------------------------------------------------+
1 row in set (0.00 sec)
