query fail:

SELECT url FROM `admin_test01105_biz`.`dp_categories` WHERE status = 1 AND id =   LIMIT 1;

SafeMySQL: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 1' at line 1. Full query: [SELECT url FROM `admin_test01105_biz`.`dp_categories` WHERE status = 1 AND id = LIMIT 1;]