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 Post subject: Compréhension : any, all some, in...
PostPosted: Tue May 26, 2009 10:49 am 
Newbie

Joined: Tue May 26, 2009 6:15 am
Posts: 4
Bonjour à tous,
Je ne comprends pas bien le but de cette requête HQL :
Code:
select cust from Product prod,
    Store store
    inner join store.customers cust
where prod.name = 'widget'
    and store.location.name in ( 'Melbourne', 'Sydney' )
    and prod = all elements(cust.currentOrder.lineItems)

et notamment la dernière ligne...
Idem pour celle-ci :
Code:
select p from NameList list, Person p
where p.name = some elements(list.names)

Toujours la dernière ligne. Je ne comprends pas l'utilisation du '=' devant some et all. Quelqu'un pourrait-il méclairer ?

Merci d'avance !


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