SQL列含糊不清

Question

我在此代码中遇到问题：

select idingrediente
into niding
from ingredientes 
inner join RECHASING on ingredientes.IDINGREDIENTE = RECHASING.IDINGREDIENTE
inner join receta on RECHASING.RIDRECETA = receta.IDRECETA;

错误：

  

列模糊定义

表 ingredientes ：

• idingrediente
• ingrediente
• cantingrediente

表重新审核：

• idingrediente
• idreceta

表 receta ：

• idReceta
• Cantingrediente

rechasing是一个中间表，因为receta有n：n ingredientes。

由于

Answer 1

只需为表格提供别名，然后使用别名标识idingrediente列：

SELECT t1.idingrediente      -- or t2.idingrediente
INTO niding
FROM ingredientes t1
INNER JOIN rechasing t2
    ON t1.idingrediente = t2.idingrediente
INNER JOIN receta t3
    ON t2.ridreceta = t3.idreceta