Mysql生产指定时间段随机日期函数

UPDATE basicsale_b2b2c.basic_customer
SET registerDate = (
    from_unixtime(
        unix_timestamp('2017-01-01') + floor(
            rand() * (
                unix_timestamp('2019-03-18') - unix_timestamp('2017-01-01') + 1
            )
        )
    )
)

效果如下

2017-06-08 11:55:38
2019-02-10 01:40:15
2017-05-31 20:34:18
2017-02-26 01:50:52