I think I spoke too soon. I get the following error:
NHibernate.Hql.Ast.ANTLR.QuerySyntaxException : Exception of type
'Antlr.Runtime.NoViableAltException' was thrown. near line 1, column
86 [delete from MyNamespace.MyEntity where EntityId in :keys]
I get this on the line
session.CreateQuery("delete from MyEntity where EntityId in :keys");
Any ideas.
Thanks.
Waqar
On Dec 15, 8:06 am, Waqar Sadiq <[email protected]> wrote:
> We are not really mapping associations so the cascade strategy is not
> very helpful to me in this particular case. The above discussed query
> seems to eb workign for me.
>
> On Dec 14, 3:46 pm, Jason Meckley <[email protected]> wrote:
>
>
>
> > like Diego said, there isn't really a "best" way. How you go about
> > deleting depends on your mappings. the cascade strategy you use will
> > greatly influence how you delete data. I have heard of some systems
> > that do not require the use of Save or Delete. All inserts and deletes
> > are managed by Adding or Removing an object from a collection.
>
> > On Dec 14, 4:13 pm, Diego Mijelshon <[email protected]> wrote:
>
> > > I don't know if there's a "best" way, but that query is pretty efficient
> > > if
> > > you already have the keys.
>
> > > The usage is:
>
> > > session.CreateQuery("delete MyEntity where id in :keys")
> > > .SetParameterList("keys", keys)
> > > .ExecuteUpdate();
>
> > > Diego
>
> > > On Mon, Dec 14, 2009 at 17:53, Waqar Sadiq <[email protected]> wrote:
> > > > Hi All,
>
> > > > I need to delete a bunch of objects that belong to a set. In my case
> > > > these objects have primay key of type Int64. I have an array if Int64
> > > > containing the keys of objects that I need to delete. What would be
> > > > the best way of deleting them.
>
> > > > Ideally, I would be able to write a query like this: (Ignoring
> > > > transactions)
>
> > > > Int64[] keys = ...; // an array of primary keys.
>
> > > > string queryStr = "delete from MyEntity wher MyKey in :keys";
> > > > IQuery query = Session.CreateQuery(queryStr);
> > > > query.ExecuteUpdate();
>
> > > > Is this the correct way to delete objects from a set?
>
> > > > Any help would be appreciated.
>
> > > > --
>
> > > > You received this message because you are subscribed to the Google
> > > > Groups
> > > > "nhusers" group.
> > > > To post to this group, send email to [email protected].
> > > > To unsubscribe from this group, send email to
> > > > [email protected]<nhusers%[email protected]>
> > > > .
> > > > For more options, visit this group at
> > > >http://groups.google.com/group/nhusers?hl=en.-Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
--
You received this message because you are subscribed to the Google Groups
"nhusers" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/nhusers?hl=en.
