Erreur SQL : Duplicate entry '' for key 'users.userIdentifier'<br>Requête : UPDATE users 	SET 

agence          =&quot;&quot;,
userIdentifier           =&quot;&quot;,

email           =&quot;&quot;,
email_gestion   =&quot;&quot;,
tel_agence          =&quot;&quot;,
name            =&quot;&quot;,
prenom          =&quot;&quot;,
tel_agence      =&quot;&quot;,
mobile      =&quot;&quot;,

adresse         =&quot;&quot;,
cp              =&quot;&quot;,
ville           =&quot;&quot;,
pays            =&quot;&quot;,
iata            =&quot;&quot;,
tva             =&quot;&quot;   WHERE id=''