MYSQL을 사용하여 2 행을 1 행으로 병합

Question

ID  Column1  Column2  Column3 
1   data1       data3 
1      data2 

위의 표에서 하나의 쿼리를 수행 할 수 있습니까? :

ID  Column1  Column2  Column3 
1   data1   data2   data3 

Answer 1

SELECT 
    MAX(Column1) AS Column1, 
    MAX(Column2) AS Column2, 
    MAX(Column3) AS Column3 
FROM 
    table 
GROUP BY 
    ID 

Answer 2

SELECT 
    GROUP_CONCAT(Column1) AS Column1, 
    GROUP_CONCAT(Column2) AS Column2, 
    GROUP_CONCAT(Column3) AS Column3 
FROM table 
GROUP BY ID