MySQL WEEKOFYEAR() 函数
定义和用法
WEEKOFYEAR() 函数返回给定日期的周数（从 1 到 53 的数字）。
注意：此函数假设一周的第一天是星期一，并且一年中的第一周超过 3 天。
提示：也可以查看 WEEK() 函数。
语法
WEEKOFYEAR(date)
参数值
| 参数 | 描述 |
|---|---|
| date | 必填。 要从中提取周数的日期或日期时间 |
技术细节
| 在以下版本中有效 | 从 MySQL 4.0 开始 |
|---|
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