mysql分组选择最近的日期

Question

我想从下面的示例表中选择每个PropertyId和Type的最近日期。

|PropertyId | Type | ExpiryDate 
|1   |1  | 2017-01-20 

|1   |1  | 2016-01-20 

|1   |2  | 2017-01-20 

|1   |2  | 2016-01-20 

|2   |1  | 2017-01-20 

|2   |1  | 2016-01-20 

|2   |2  | 2017-01-20 

|2   |2  | 2016-01-20 

所以要寻找的结果： -

|PropertyId | Type | ExpiryDate 

|1   |1  | 2017-01-20 

|1   |2  | 2017-01-20 

|2   |1  | 2017-01-20 

|2   |2  | 2017-01-20 

Answer 1

您可以通过

SELECT max(ExpiryDate),PropertyId , Type from Table group by PropertyId , Type;