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mysqlsql-deletecomposite-primary-keymultiple-records

How to delete multiple rows with 2 columns as composite primary key in MySQL?


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?

I'm looking for something similar to

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

Solution

  • The answer in Oracle is:

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

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