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在MySQL中将dd / mm / yyyy字符串转换为Unix时间戳？

2024-05-01 15:11:05 451

借助UNIX_TIMESTAMP()将dd/mm/yyyy字符串转换为Unix时间戳。语法如下-

SELECT UNIX_TIMESTAMP(STR_TO_DATE(yourColumnName,'%d/%m/%Y')) as anyVariableName FROM yourTableName;

为了理解上述语法，让我们创建一个表。创建表的查询如下-

mysql> create table ConvertddmmyyyyInUnixTimeStamp
   -> (
   -> Id int NOT NULL AUTO_INCREMENT,
   -> Created_at varchar(30),
   -> PRIMARY KEY(Id)
   -> );

使用insert命令在表中插入一些记录。查询如下-

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('10/11/2012');

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('11/12/2013');

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('10/12/2012');

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('31/01/2015');

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('24/04/2016');

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('20/09/2017');

mysql> insert into ConvertddmmyyyyInUnixTimeStamp(Created_at) values('15/03/2018');

使用select语句显示表中的所有记录。查询如下-

mysql> select *from ConvertddmmyyyyInUnixTimeStamp;

以下是输出-

+----+------------+
| Id | Created_at |
+----+------------+
| 1 | 10/11/2012 |
| 2 | 11/12/2013 |
| 3 | 10/12/2012 |
| 4 | 31/01/2015 |
| 5 | 24/04/2016 |
| 6 | 20/09/2017 |
| 7 | 15/03/2018 |
+----+------------+
7 rows in set (0.00 sec)

现在让我们将dd/mm/yyyy字符串转换为UNIX时间戳：

mysql> select unix_timestamp(str_to_date(Created_at,'%d/%m/%Y')) as UnixTimestamp from ConvertddmmyyyyInUnixTimeStamp;

以下是输出：

+---------------+
| UnixTimestamp |
+---------------+
| 1352485800    |
| 1386700200    |
| 1355077800    |
| 1422642600    |
| 1461436200    |
| 1505845800    |
| 1521052200    |
+---------------+
7 rows in set (0.00 sec)

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在MySQL中将dd / mm / yyyy字符串转换为Unix时间戳？

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