为了从时间戳获取日期,可以使用DATE()
MySQL中的函数。
语法如下-
SELECT DATE(yourTimestampColumnName) as anyVariableName from yourTableName;
为了理解上述语法,让我们首先创建一个表。创建表的查询如下-
mysql> create table DateFromTimestamp -> ( -> ShippingDateTime timestamp -> );
在上面创建的ShippingDateTime列中插入日期和时间。
插入记录的查询如下-
mysql> insert into DateFromTimestamp values('2012-12-26 13:24:35'); mysql> insert into DateFromTimestamp values('2013-11-26 14:36:40'); mysql> insert into DateFromTimestamp values('2016-07-22 15:20:10'); mysql> insert into DateFromTimestamp values('2017-11-04 04:25:30');
使用select命令显示表中的所有记录。查询如下-
mysql> select *from DateFromTimestamp;
输出结果
+---------------------+ | ShippingDateTime | +---------------------+ | 2012-12-26 13:24:35 | | 2013-11-26 14:36:40 | | 2016-07-22 15:20:10 | | 2017-11-04 04:25:30 | +---------------------+ 4 rows in set (0.00 sec)
以下是使用date()
方法仅显示来自时间戳的日期的查询-
mysql> select date(ShippingDateTime) as OnlyDatePartFromTimestamp from DateFromTimestamp;
输出结果
+---------------------------+ | OnlyDatePartFromTimestamp | +---------------------------+ | 2012-12-26 | | 2013-11-26 | | 2016-07-22 | | 2017-11-04 | +---------------------------+ 4 rows in set (0.00 sec)