Invalid query:
SELECT t.con_name, c.size FROM containers c, container_types t WHERE c.plant_id = AND c.container_id = t.con_id ORDER by t.con_id

Error 1064:
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 'AND c.container_id = t.con_id ORDER by t.con_id' at line 1