MySQL查询，关于日期和时间戳，查询时间的记录

1. from_unixtime(time_stamp) -> 将时间戳转换为日期

   mysql> select from_unixtime(create_time) from tag limit 10;
   +----------------------------+
   | from_unixtime(create_time) |
   +----------------------------+
   | 2017-03-15 08:30:46        |
   | 2017-03-15 10:30:06        |
   | 2017-03-14 17:06:42        |
   | 2017-03-12 09:31:31        |
   | 2017-03-15 05:08:37        |
   | 2017-03-05 06:54:21        |
   | 2017-03-14 17:18:20        |
   | 2017-03-15 09:01:26        |
   | 2017-03-01 02:37:46        |
   | 2017-02-28 05:02:27        |
   +----------------------------+
   10 rows in set (0.00 sec)

2. unix_timestamp(date) -> 将指定的日期或者日期字符串转换为时间戳

   select * from tag  where create_time >= unix_timestamp(‘2018-10-26 00:00:01‘) and create_time <= unix_timestamp(‘2018-12-11 23:59:59‘) order by total  desc limit 10;

二. 查询近30天的数据
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)

mysql> select * from tag where date_sub(curdate(),interval 45 day) <= from_unixtime(create_time) order by total desc limit 10;

mysql查询今天、昨天、7天、近30天、本月、上一月 数据：
https://www.cnblogs.com/qinweizhi/p/5918048.html

MySQL查询，关于日期和时间戳，查询时间的记录

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