一个请求插入的，选择的日期在mysql

mysql选择或插入目前的时间

SELECT now();
2021-07-26 22:08:15
the now() function returns the date and time when the query starts
the sysdate() function returns the exact date and time the query completes

select sysdate();
+---------------------+
| sysdate()           |
+---------------------+
| 2021-07-26 22:12:19 |
+---------------------+