查询将列数据用作列名

Question

请帮我创建一个MYSQL查询，将列数据用作输出表中的列名：

这是我的表：

ID | Name | Stage
-------------------
1  | John | Stage 1
2  | Mark | Stage 3
3  | Bill | Stage 2
4  | Mary | Stage 2

I want to see this:

Stage 1 | Stage 2 | Stage 3
---------------------------
John    | Bill    | Mark
        | Mary    |

Answer 1

这是你的mysql查询：

select
  case when stage = 'Stage 1' then name end 'Stage 1',
  case when stage = 'Stage 2' then name end 'Stage 2',
  case when stage = 'Stage 3' then name end 'Stage 3'
  from table1;

http://sqlfiddle.com/#!9/1ee5d/1