MySQL Query重新排列列和行

Question

我有一个表格视图：

company_name    Status  Status_Created_Date
-------------------------------------------
Company A       StatusA   15/11/2014
Company A       StatusB   22/11/2014
Company B       StatusA   12/11/2014
Company B       StatusB   02/11/2014

我希望得到这样的结果：

company_name     StatusA         StatusB  
-------------------------------------------
Company A       15/11/2014
Company A                       22/11/2014
Company B       12/11/2014
Company B                       02/11/2014

请告诉我如何构建查询以正确完成查询。

Answer 1

试试这个

select company_name,case when status='statusA' then Status_Created_Date 
else '' end "Status A",case when status='statusB' then Status_Created_Date 
else '' end "Status B" from table1