如何選擇特定日期的最大時間戳？

Question

我有date = 2013-05-08和列：

|timestamp 

|2013-05-08 21:02:11 

|2013-05-08 22:22:21 

|2013-05-08 23:05:12 

|2013-05-09 11:02:10 

|2013-05-10 09:12:01 

結果應該是：

2013-05-08 23:05:12 

我怎樣才能做到這一點？

Answer 1

SELECT MAX(timestamp) 
    FROM table 
     WHERE DATE(timestamp) = '2015-05-08' 
     GROUP BY DATE(timestamp);