Question

CREATE TABLE Test (

id int primary key,
Present varchar(10),
Date date,
Time time
);

INSERT INTO Test (id, Present, Date, Time)
Values (1, 'Present', '2018-07-18', '10:13:55' ),
(2, 'Present', '2018-07-18', '10:10:55' );

查询：

SELECT 
id,
Present,
Date,
Time,
current_time AS 'Current Time',
TIMESTAMPDIFF(MINUTE, [Time], CURRENT_TIME()) AS 'Current Time'

FROM Test

我正在寻找time1和当前时间（以分钟为单位）之间的时差。我不断收到错误消息，所以我假设可能是转换问题，但我无法解决。

提琴：http://sqlfiddle.com/#!9/486850/47

有人可以告诉我谢谢

Answer 1

SELECT 
id,
Present,
Date,
Time,
TIMESTAMPDIFF(MINUTE, time, CURRENT_TIMESTAMP())

FROM Test

正在工作，我想您的别名给您带来了麻烦

Answer 2

您可以尝试以下查询：

SELECT 
id,
Present,
Date,
Time,
current_time as Current,
TIMESTAMPDIFF(MINUTE, Time, CURRENT_TIME()) AS Time_difference
FROM Test;

Demo here

2个日期之间的时间（分钟）差MySQL

2 个答案: