//date debut et date fin
SI DateDebut<>"" ET DateFin<>"" ALORS
SI cCondition<>"" alors cCondition+= " AND "
cCondition+="jour_debut_manif between '"
cCondition+="jour_debut_manif between '"
cCondition+=DateDebut
cCondition+= "' AND '"
cCondition+=DateFin
cCondition+="' AND "
cCondition+="jour_fin_manif between '"
cCondition+=DateDebut
cCondition+="' AND '"
cCondition+=DateFin
cCondition+="'" // le AND suivant sera ajouté par la prochaine condition
ElementRequete=Vrai
FIN
... autres tests et conditions...
SI cCondition<>"" ALORS TexteReQuete+=cCondition
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