MySQL microsecond()函数

MICROSECOND(expr)

返回时间或日期时间表达式expr的微秒,这个数字范围为 0 到 999999。

mysql> SELECT MICROSECOND('12:00:00.123456');
+---------------------------------------------------------+
| MICROSECOND('12:00:00.123456')                          |
+---------------------------------------------------------+
| 123456                                                  |
+---------------------------------------------------------+
1 row in set (0.00 sec)

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