mysql - 如何从mysql中的多个相同日期获取最新的日期时间

Question

如何从mysql中的多个相同日期获取最新的日期时间？

SELECT start_time FROM times WHERE start_time BETWEEN '2013-01-27' AND '2013-02-02' ORDER BY start_time

这输出：

2013-01-27 00:00:00 
2013-01-28 09:00:00 
2013-01-29 00:00:00 
2013-01-30 09:00:00 
2013-01-31 00:00:00     
2013-02-01 09:00:00      
2013-02-01 21:00:00      
2013-02-02 00:00:00 

我希望所有这些都输出，除了我想要 2013-02-01 的最新日期时间，所以它会输出如下：

2013-01-27 00:00:00 
2013-01-28 09:00:00 
2013-01-29 00:00:00 
2013-01-30 09:00:00 
2013-01-31 00:00:00          
2013-02-01 21:00:00  <<<<<<<<    
2013-02-02 00:00:00 

Answer 1

SELECT MAX(start_time)
FROM times 
WHERE start_time BETWEEN '2013-01-27 00:00:00' AND '2013-02-02 23:59:59' 
GROUP BY DATE(start_time)
ORDER BY start_time

• SQLFiddle 演示