如何在 MySQL 中按时间戳排序?


要按时间戳排序,请使用以下语法中所示的 ORDER BY −

select *from yourTableName ORDER BY STR_TO_DATE(`yourColumnName`,'%m/%d/%Y%h:%i:%s %p');

我们首先创建一个表格 −

mysql> create table DemoTable
   -> (
   -> `timestamp` varchar(100)
   -> );
Query OK, 0 rows affected (0.56 sec)

使用插入命令在表格中插入一些记录 −

mysql> insert into DemoTable values('06/22/2019 01:10:20 PM');
Query OK, 1 row affected (0.13 sec)

mysql> insert into DemoTable values('06/22/2019 12:00:27 PM');
Query OK, 1 row affected (0.26 sec)

mysql> insert into DemoTable values('06/22/2019 06:56:20 AM');
Query OK, 1 row affected (0.23 sec)

mysql> insert into DemoTable values('06/22/2019 07:10:11 AM');
Query OK, 1 row affected (0.15 sec)

使用 select 语句从表格中显示所有记录 −

mysql> select *from DemoTable;

输出

将会生成以下输出 −

+------------------------+
| timestamp              |
+------------------------+
| 06/22/2019 01:10:20 PM |
| 06/22/2019 12:00:27 PM |
| 06/22/2019 06:56:20 AM |
| 06/22/2019 07:10:11 AM |
+------------------------+
4 rows in set (0.00 sec)

以下是 MySQL 中按时间戳排序的查询 −

mysql> select *from DemoTable ORDER BY STR_TO_DATE(`timestamp`,'%m/%d/%Y%h:%i:%s %p');

输出

将会生成以下输出 −

+------------------------+
| timestamp              |
+------------------------+
| 06/22/2019 06:56:20 AM |
| 06/22/2019 07:10:11 AM |
| 06/22/2019 12:00:27 PM |
| 06/22/2019 01:10:20 PM |
+------------------------+
4 rows in set (0.00 sec)

更新于: 30-Jun-2020

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