WEEKOFYEAR(date)

返回日期用數字表示的範圍是從1到53的日曆周。WEEKOFYEAR()是一個兼容性函數，它等效於WEEK(date,3)。

mysql> SELECT WEEKOFYEAR('1998-02-20');
+---------------------------------------------------------+
| WEEKOFYEAR('1998-02-20')                                |
+---------------------------------------------------------+
| 8                                                       |
+---------------------------------------------------------+
1 row in set (0.00 sec)