SQL查询 - 将多行合并为一行

Question

如何编写SQL以将来自多个列和行的数据合并为一行。

OrganizationId  Name    Type    Active
--------------------------------------
      1         Baker   County  Yes
      2         curry   county  Yes

预期结果：

SomeColumnName
-------------------------------
1BakerCountyYes2currycountyYes

Answer 1

<强>的MySQL

使用 GROUP_CONCAT 。

SELECT row_id,        
       group_concat( Value ORDER BY Value SEPARATOR ' ')
FROM 
    (SELECT 
        @row_number:=1 AS row_id,
        CONCAT(OrganizationId ,Name,Type,Active) AS Value
    FROM
        Table1
     ORDER BY file_fields_id
     ) T
GROUP BY row_id;