为什么这个复杂的 delete SQL 查询不起作用？

Question

我正在尝试执行 "complex" SQL 删除查询，但它不起作用。

这是我的查询：

DELETE
FROM Market_Commodity_Price_Series     AS MC_PS
INNER JOIN MarketDetails_CommodityDetails AS MD_CD
      ON MC_PS.market_commodity_details_id = MD_CD.id 
INNER JOIN MarketDetails                     AS MD
      ON  MD_CD.market_details_id = MD.id  
WHERE
      MD.localization_id = 1

我只想从 Market_Commodity_Price_Series 中删除所有行，但要使用此 WHERE 条件。如您所见，where 条件使用了一些 JOIN 操作。

问题是执行此查询时我收到此错误消息：

#42000You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AS MC_PS INNER JOIN MarketDetails_CommodityDetails AS MD_CD ON MC_PS.mar' at line 2

我该如何解决这个问题？也许将其用作子查询：

SELECT MC_PS.id
FROM Market_Commodity_Price_Series     AS MC_PS
INNER JOIN MarketDetails_CommodityDetails AS MD_CD
      ON MC_PS.market_commodity_details_id = MD_CD.id 
INNER JOIN MarketDetails                     AS MD
      ON  MD_CD.market_details_id = MD.id  
WHERE
      MD.localization_id = 1

（使用ID）

但是如何呢？

Answer 1

你想删除MC_PS所以在删除"MC_PS"之后写它

DELETE MC_PS
FROM Market_Commodity_Price_Series     AS MC_PS
INNER JOIN MarketDetails_CommodityDetails AS MD_CD
      ON MC_PS.market_commodity_details_id = MD_CD.id 
INNER JOIN MarketDetails                     AS MD
      ON  MD_CD.market_details_id = MD.id  
WHERE
      MD.localization_id = 1

为什么这个复杂的 delete SQL 查询不起作用？

Why this complex delete SQL query is not working?

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