Référence

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Géographie, histoire, sciences auxiliaires de l'histoire	Langage	Les arts. Beaux arts et arts décoratifs
Littérature (Belles lettres)	No clasificado	Sciences Sociales
Sciences de la nature et mathématiques : classer ici les sciences naturelles, les ouvrages sur les sciences pures et appliquées. Classer	Techniques (Sciences appliquées)

Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb3_general_ci,COERCIBLE) for operation 'if'
SELECT oal.arc_expl_notice, oal.arc_expl_bulletin, count(*) AS total_prets, trim(concat(ifnull(notices_m.tit1,''),ifnull(notices_s.tit1,''),' ',ifnull(bulletin_numero,''), if(mention_date, concat(' (',mention_date,')') ,if (date_date, concat(' (',date_format(date_date, '%d/%m/%Y'),')') ,'')))) as tit, if(notices_m.notice_id, notices_m.notice_id, notices_s.notice_id) as not_id FROM ((((pret_archive AS oal JOIN (SELECT distinct arc_id_empr FROM pret_archive nbec where (nbec.arc_expl_notice='24008' AND nbec.arc_expl_bulletin='0') AND nbec.arc_id_empr !=0) as nbec ON (oal.arc_id_empr=nbec.arc_id_empr and oal.arc_id_empr!=0 and nbec.arc_id_empr!=0)) LEFT JOIN notices AS notices_m ON arc_expl_notice = notices_m.notice_id ) LEFT JOIN bulletins ON arc_expl_bulletin = bulletins.bulletin_id) LEFT JOIN notices AS notices_s ON bulletin_notice = notices_s.notice_id) WHERE oal.arc_expl_notice!=24008 AND oal.arc_id_empr !=0 GROUP BY oal.arc_expl_notice, oal.arc_expl_bulletin HAVING total_prets>=10 ORDER BY rand()