是否可以编写MySQL查询以使用CSV中的标识值删除记录？

Question

I know how to do the following in PHP, but I am wondering if it is possible to write a "pure" MySQL query to do the same:

Every night, I have a script which generates a CSV file of primary key IDs that I need to delete from a large database of records.

Is it possible to write a MySQL query that reads the CSV file, and deletes the record for each primary key value? In psuedocode, something along the lines of:

   READ 'CSVFILE.csv' AS FILE;
   FOR EACH( VALUE IN FILE )
        DELETE FROM myTable WHERE id = VALUE;

Is something like this even possible just using a MySQL query?

Answer 1

You can do your job by using two queries and making a temporary table.
LOAD DATA INFILE

LOAD DATA INFILE 'CSVFILE.csv' INTO TABLE temp_tbl_name
FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\r\n'
IGNORE 1 LINES;
DELETE FROM myTable WHERE id IN (SELECT toDeleteIdColumn FROM temp_tbl_name);