SET a variable in SELECT statement - MySQL

Question

I\'m using this code which has an error:

SET @rejects = \'\';

SELECT *
FROM list
WHERE maker = 1
    AND by_ids IN (\'10\',\'11\')
    AND country LIKE \'%I         


        

Answer 1

Then you might write your query like this.

SET @rejects = '';
SELECT @rejects = CONCAT(@rejects,',',src) FROM list WHERE maker = 1 AND by_ids IN ('10','11') AND country LIKE '%I%' AND 
(src IS NULL OR src NOT IN (@rejects) AND checkSrc(src) = 'yes');
SELECT @rejects;