FROM_UNIXTIME
from_unixtime
description
Syntax
DATETIME FROM_UNIXTIME(BIGINT unix_timestamp[, VARCHAR string_format])
将 unix 时间戳转化为对应的 time 格式,返回的格式由 string_format
指定
支持 date_format
中的 format 格式,默认为 %Y-%m-%d %H:%i:%s
传入的是整型,返回的是字符串类型
目前支持的 unix_timestamp
范围为 [0, 32536771199]
,超出范围的 unix_timestamp
将会得到 NULL
example
mysql> select from_unixtime(1196440219);
+---------------------------+
| from_unixtime(1196440219) |
+---------------------------+
| 2007-12-01 00:30:19 |
+---------------------------+
mysql> select from_unixtime(1196440219, 'yyyy-MM-dd HH:mm:ss');
+--------------------------------------------------+
| from_unixtime(1196440219, 'yyyy-MM-dd HH:mm:ss') |
+--------------------------------------------------+
| 2007-12-01 00:30:19 |
+--------------------------------------------------+
mysql> select from_unixtime(1196440219, '%Y-%m-%d');
+-----------------------------------------+
| from_unixtime(1196440219, '%Y-%m-%d') |
+-----------------------------------------+
| 2007-12-01 |
+-----------------------------------------+
mysql> select from_unixtime(1196440219, '%Y-%m-%d %H:%i:%s');
+--------------------------------------------------+
| from_unixtime(1196440219, '%Y-%m-%d %H:%i:%s') |
+--------------------------------------------------+
| 2007-12-01 00:30:19 |
+--------------------------------------------------+
对于超过范围的时间戳,可以采用from_second函数
DATETIME FROM_SECOND(BIGINT unix_timestamp)
mysql> select from_second(21474836470);
+--------------------------+
| from_second(21474836470) |
+--------------------------+
| 2650-07-06 16:21:10 |
+--------------------------+
keywords
FROM_UNIXTIME,FROM,UNIXTIME