아래 메세지를 확인해 주세요.

SELECT *,SUBSTRING(ca_start_apply,1,16) AS ca_start_apply,SUBSTRING(ca_end_apply,1,16) AS ca_end_apply FROM camp_term WHERE ca_active='1' ORDER BY ca_train_period DESC LIMIT 0,50 [nativecode=1054 ** Unknown column 'ca_train_period' in 'order clause']