select m.name,count(model_id) time from model m,task_model_relation t where m.id = t.model_id GROUP BY t.model_id DESC?这句怎么错了?其他的电脑可以正常运行啊

select m.name,count(model_id) time from model m,task_model_relation t where m.id = t.model_id GROUP BY t.model_id DESC?这句怎么错了?其他的电脑可以正常运行啊

补充一下ORDER BY