Sorry, baseProduc*t*Query,  not baseProduc*y*Query.


*Mohamed Meligy
*Readify | Senior Developer

M:+61 451 835006 | W: readify.net
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On Fri, May 6, 2011 at 12:01 PM, Mohamed Meligy <[email protected]>wrote:

> Although NH I think would happily do it, I think LINQ itself won't let you
> do it straight forward.
>
> However, there is some way:
>
> var baseProducyQuery = session.Query<Product>();var query = from p in 
> baseProducyQuery
>             select new
>                        {
>                            Product = p,
>                            Count = baseProducyQuery.Count(),
>                            PriceOfAllProducts = baseProducyQuery.Sum(x => 
> x.Price)
>                        };
>
> The generated SQL (working with Product model from
> http://gurustop.net/blog/2011/04/17/nh-nhibernate-mapping-jose-romaniello-ef-conform-domain-using-fnh-fluentnhibernate/
>  is:
>
>     select
>>         product0_.Id as col_0_0_,
>>         (select
>>             cast(count(*) as INT)
>>         from
>>             [Product] product1_) as col_1_0_,
>>         (select
>>             cast(sum(product2_.Price) as DECIMAL(19,
>>             5))
>>         from
>>             [Product] product2_) as col_2_0_,
>>         product0_.Id as Id4_,
>>         product0_.Name as Name4_,
>>         product0_.Price as Price4_
>>     from
>>         [Product] product0_
>
>
>
> *Mohamed Meligy
> *Readify | Senior Developer
>
> M:+61 451 835006 | W: readify.net
> [image: Description: Description: Description: Description: 
> rss_16]<http://gurustop.net>
> [image: Description: Description: Description: Description:
> cid:[email protected]] <http://www.linkedin.com/in/meligy>  
> [image:
> Description: Description: Description: Description:
> cid:[email protected]] <http://twitter.com/meligy>
>  
> <http://www.greatplacetowork.com.au/best/best-companies-australia.php><http://www.readify.net/AboutUs/NewsItem.aspx?id=10>
>
>
>
> On Fri, May 6, 2011 at 10:12 AM, Andrei Alecu <[email protected]>wrote:
>
>> Is it possible to generate a *single* query to the database, like:
>>
>> select sum(x.value), count(*) from sometable
>>
>> With NHibernate Linq?
>>
>> I was able to do this with HQL and with QueryOver using
>> ProjectionList, but I can't seem to be able to find how to do it with
>> Linq.
>>
>> Note that there's no grouping involved, I believe that if I had a
>> grouping I could've used GroupBy() and the query would've gotten
>> translated properly into one database hit.
>>
>> If I need to tap into some deeply hidden Linq to HQL converters to do
>> it, it's fine, if only someone could point me in the right direction.
>>
>> Thanks!
>>
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>

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