UPDATE
    om_requete 
SET
    requete = NULL,
    merge_fields = NULL,
    type = 'objet',
    classe = 'dossier'
WHERE
    om_requete = 7;

UPDATE
    om_requete 
SET
    requete = NULL,
    merge_fields = NULL,
    type = 'objet',
    classe = 'rapport_instruction'
WHERE
    om_requete = 17;

UPDATE
    om_requete 
SET
    requete = NULL,
    merge_fields = NULL,
    type = 'objet',
    classe = 'instruction'
WHERE
    om_requete = 29;
