ERREUR MySQL: SELECT artist,art_name,agd_year,agd_month,agd_days,agd_order,agd_description,agd_info,agd_confirmed FROM concert,artist LEFT JOIN concert_artist on concert_artist.oal_concert=concert.concert WHERE concert_artist.oal_artist=artist.artist ORDER BY agd_year,agd_month,agd_order ASC
Unknown column 'concert.concert' in 'on clause'