如何在 MySQL 中删除多行 2 列作为复合主键? [英] How to delete multiple rows with 2 columns as composite primary key in MySQL?

问题描述

我的innodb表结构如下:4列(CountryID, Year, %Change, Source)，其中2列(CountryID, Year)为主钥匙.除了使用 for 循环删除每一行之外，如何删除多行?

My innodb table has the following structure: 4 columns (CountryID, Year, %Change, Source), with the 2 columns (CountryID, Year) as the primary key. How do I delete multiple rows other than using a for-loop to delete each row?

我正在寻找类似的东西

DELETE FROM CPI 
 WHERE CountryID AND Year IN (('AD', 2010), ('AF', 2009), ('AG', 1992))

推荐答案

Oracle 中的答案是:

The answer in Oracle is:

delete from cpi
 where (countryid, year) in (('AD', 2010), ('AF', 2009), ('AG', 1992))

这是相当标准的 SQL 语法，我认为 MySQL 是一样的.

It's fairly standard SQL syntax and I think MySQL is the same.

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