Mysql 如何将一列内部连接到两个不同的列？

我有两张桌子：

**projects**

|Equity_holders| Financer  |
|--------------|-----------|
|Company 1     | Company 7 |
|Company 2     | Company 9 |
|Company 3     | Company 4 |

**entities**

|name         | country |
|-------------|---------|
|Company 1    |  USA    |
|Company 2    |  Italy  |
|Company 3    |  UK     |
|Company 4    |  Nigeria|
|Company 5    |  Brazil |
|Company 6    |  China  |
|Company 7    |  France |
|Company 8    |  China  |
|Company 9    |  Germany|

我希望我的显示表看起来像：

|Equity_holders| country |Financer     | country |
|--------------|---------|-------------|---------|
|Company 1     |  USA    |Company 4    |  Nigeria|
|Company 2     |  Italy  |Company 7    |  France |
|Company 3     |  UK     |Company 9    |  Germany|                       

我已成功使用内部联接将“股权持有人”列与实体名称匹配，并显示相应的“国家”：

SELECT projects.Equity_holders,entities.country, projects.Financer,entities.country
FROM projects
INNER JOIN entities ON projects.Equity_holders LIKE CONCAT('%', entities.name, '%')
INNER JOIN entities A ON projects.Financer LIKE CONCAT('%', entities.name, '%' )

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但无法使“Financer”列显示正确的对应国家。它只是重复了“股权持有人”列。我感觉select查询有问题，但无法确定要更改什么。

您可以在下面尝试-您需要将您的第二个实体命名为e1，并将e1.country用作country1

SELECT projects.Equity_holders,entities.country, projects.Financer,e1.country
FROM projects
INNER JOIN entities ON projects.Equity_holders=entities.name
INNER JOIN entities e1 ON projects.Financer=e1.name

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如果你想知道出资人所在的国家，你应该在项目结束后得到一个.country.Financer

请尝试以下操作：

SELECT projects.Equity_holders,entities.country, projects.Financer,A.country
FROM projects
INNER JOIN entities ON projects.Equity_holders LIKE CONCAT('%', entities.name, '%')
INNER JOIN entities A ON projects.Financer LIKE CONCAT('%', entities.name, '%' )