Fonctions (suite)‏

• Traitement de chaînes de caractères
• fn:concat("HT","ML") renvoie "HTML"
• fn:concat("HT","ML"," ","book") renvoie "HTML book"
• fn:string-join(("HTML","book")," ") renvoie "HTML book"
• fn:string-join(("1","2","3"),"+") renvoie "1+2+3"
• fn:substring("HTML book",6) renvoie "book"
• fn:substring("HTML book",3,5) renvoie "ML b"
• fn:string-length("HTML book") renvoie 9
• fn:upper-case("HTML book") renvoie "HTML BOOK"
• fn:lower-case("HTML book") renvoie " html book"