MySQL | You can't specify target table 'a' for update in FROM clause

Question

DELETE FROM table_a WHERE id IN(
    SELECT table_a.id AS id FROM table_a, table_b 
    WHERE table_a.object_id = 1 AND table_a.code = \'code\' 
        AND table_a.         


        

Answer 1

This is a common MySQL issue, use a temporary table between the select and update/delete:

DELETE FROM table_a WHERE id IN 
   (select id from 
       (SELECT table_a.id AS id FROM table_a, table_b 
        WHERE table_a.object_id = 1 
        AND table_a.code = 'code' 
        AND table_a.code = table_b.code 
        AND table_b.id = table_a.b_id 
        AND table_b.table = 'testTable')
    ) tempTable