nhibernate joinentityalias

NHibernate QueryOver to join unrelated entities - You can join onto unrelated entities with Linq in NHibernate 3+. Funnily enough you use the join query expression element: from type1 in

Chapter 17. QueryOver Queries - To achieve it, use JoinEntityAlias and JoinEntityQueryOver. By example: Cat cat = null; Cat joinedCat = null; var uniquelyNamedCats = sess.QueryOver<Cat>(()

nhibernate-core/EntityJoinExtensions.cs at master · nhibernate - nhibernate-core/src/NHibernate/EntityJoinExtensions.cs public static TThis JoinEntityAlias<TThis, TEntity>(this TThis queryOver, Expression<Func<TEntity> >

RowCount not working with JoinEntityAlias · Issue #1680 - When using JoinEntityAlias with queryOver.RowCount() or queryOver. ToRowCountQuery() throws an error Exception thrown: 'NHibernate.

QueryOver Series - In this post, I'll outline some basics on QueryOver, including the NHibernate types involved and basic query structure. I'll also talk about joining

NHibernate QueryOver Queries - NHibernate QueryOver Queries - Learn NHibernate starting from Overview, Architecture, Orm, Environment Setup, Getting Started, Basic Orm, Basic Crud

NHibernate QueryOver is not a Linq provider (that is how to do join - Starting from NHibernate 3.0 a new API was build as a wrapper around the ICriteria object. Obviously I'm talking about the powerful API called

Aggregating Left Join in NHibernate using QueryOver/ICriteria - I have two simple classes [code C#] public class Blog { public Blog(){ Comments= new List Comment (); } public virtual Guid Id { get; set; } public

[NH-3694] Criteria or QueryOver with join to - I've prepared unit test code. See attachments. Generated SQL is correct (the same as in NH 3.3) but List() returns empty collection.

NHibernate QueryOver to join unrelated entities - I have the following query working which gets the results I want: int associatedId = 123; MyObject alias = null; var subQuery = QueryOver.Of<DatabaseView>() .

nhibernate fetch

Chapter 21. Improving performance - Fetching strategies. A fetching strategy is the strategy NHibernate will use for retrieving associated objects if the application needs to navigate the association. Fetch strategies may be declared in the O/R mapping metadata, or overridden by a particular HQL or Criteria query.

Fetch vs FetchMany in NHibernate Linq provider - Fetch should be used for references and FetchMany for collections. This is particularly important because only FetchMany can be combined with

NHibernate Linq Eager Fetching - The new NHibernate Linq provider provides eager fetching out of the box. Here's how you do it: var customers = session.Query<Customer>().

FETCHING COLLECTIONS WITH NHIBERNATE, A MISTAKE A I - I did it again! That's why I'm writing this blog postI do it almost every time and the main reason is: trying to optimize NHibernate queries without

Solving Performance Problems with nHibernate (or any ORM) - When you ask nHibernate for any object, it will automatically retrieve the done via the Fetch/FetchMany/ThenFetch/ThenFetchMany methods.

NHibernate, FirstOrDefault() and Fetch() – not what I expect - I am a huge fan of Linq, mostly since I like to use it as a default query language across multiple products such as LinqToSql or NHibernate.

Software development blog - One of the most common pitfalls is not telling NHibernate to fetch the data your application needs. NHibernate has a feature called lazy loading

NH-3204 - rosieks created an issue — 29th June 2012, 13:39:34: When I run query like this: session.Query().Fetch(c => c.Addresses).Take(10); or session.

How to get the best performance out of NHibernate (and when not to - For the record, I'm assuming you use Fluent NHibernate to avoid those parent entity will cause another SELECT to fetch the related childs.

Eager Fetch or Fetch Join? - The same solution can be found in Chapter 8 of the new published book " NHibernate in Action". This works great, for one-to-many association

union nhibernate c#

Union with NHibernate and Criteria? - You can't do a union directly, but you can do two future queries and union the After this, when either result set is enumerated, NHibernate will

[NH-2710] Support Unions on HQL - Support Unions on HQL. Description. HQL should support the UNION keyword, since it provides better performance on most DBs than OR clauses. Environment.

Union in NHibernate - Hi, I want to know that if NHibernate can support Union of 2 tables in a query. If not then is there any other way to work aroud this. Thank you in

Chapter 17. QueryOver Queries - The ICriteria API is NHibernate's implementation of Query Object. NHibernate Some SQL operators/functions do not have a direct equivalent in C#. (e.g., the

Chapter 18. Linq Queries - NHibernate 3.0 introduces the Linq to NHibernate provider, which allows the use of the Linq API for querying with NHibernate. IQueryable queries are obtained

How to get the best performance out of NHibernate (and when not to - NET community is the aversion against object-relational mappers like NHibernate and Entity Framework. Granted, if I could, I would use an

Supported and Unsupported LINQ Methods (LINQ to Entities - Method, Support, Visual Basic function signature, C# method signature . IQueryable<TSource> Union<TSource>( this IQueryable<TSource>

LINQ - In Linq To Objects, there are two ways you can join two sequences together, using either Concat() or Union(), and as I was wondering how the

StackExchange/Dapper: Dapper - a simple object mapper - Query("select 1 A, 2 B union all select 3, 4"); Assert.Equal(1, (int)rows[0]. . NHibernate, SQL, Post, 313.85 us, 26.5000, 1.0000, -, 101.01 KB. LINQ to SQL, First

Frans Bouma's blog - Update: I've reworded a sentence as it was too vague. Sorry for that. Here's a simple performance tip which can benefit you without doing any

nhibernate multiquery

NHibernate Multiquery for eager loading without joins - Generally speaking, NHibernate can use the cache to "combine" the results from queries executed through Multiquery. However, it should be

NHhibernate - multiple queries in one roundtrip to server - NHibernate provides us with three different mechanisms to accomplish this goal: First way to execute several queries at once is MultiQuery.

NHibernate MultiQuery and MultiCriteria unsupported Databases - If this method is not in the NHibernate.Driver.*.cs and returns true, then the NHibernate database driver will not support MultiQuery or

The Query Batcher - One of my favorite NHibernate features must be the MultiCriteria/MultiQuery support. This basically allows you to execute a set of queries in one database call. In case you don't know, an ICriteria instance is basically a programmatic query.

Using MultiQuery - NHibernate 3.0 Cookbook - Using MultiQueryJust like we can combine several ICrit

Using MultiQuery - NHibernate 4.x Cookbook - Similar to how we can combine several ICriteria and QueryOver queries into a single database round trip with MultiCriteria, we can combine several HQL and/or .

MultiQuery (more queries in one batch) in Entity Framework using - 11 Oct 2010 Entity Framework, LINQ, NHibernate. I recently discovered nice feature of NHibernate. It's called MultiQuery (but the name doesn't matter). The idea

NHibernate Multi Criteria - A while ago I added Mutli Query to NHibernate, but I didn't have the time to add Multi Criteria capabilties in time for the 1.2 release. As it turn out

More NHibernate queries - The Hql equivalent would use Multiquery; Criteria uses MultiCriteria. //you can also use separate ICriterias with .Future /

inner join nhibernate

Fluent Nhibernate inner join - For a start I would get rid of the dbo from dbo.Imagen. Using the ICriteria interface you need to think in-terms of objects, not database tables,

Chapter 17. QueryOver Queries - The default join is an inner-join. Each of the additional join types can be specified using the methods .Inner, .Left, .Right, or .Full. For example, to left outer-join on

How to do Inner Join in NHibernate - I had spent a lot of extensive time trying to find how to do a fairly simple inner join from two tables in NHibernate, and because the

NHibernate QueryOver examples using the C# library - QueryOver is a powerful wrapper for the NHibernate ORM Criteria API. It is type- safe Inner joins with additional conditions, part of join criteria.

QueryOver Series - In this post, I'll outline some basics on QueryOver, including the NHibernate types involved and basic query structure. I'll also talk about joining

Inner join fetch in Linq query possible? - Is it possible to modify a query (or the mapping) so that the call to the .Fetch() extension method of NHibernate results in a inner join in

NHibernate Linq's Fetch with Inner Join - NHibernate implementation for Linq's Fetch will only produce outer join. Unfortunately even with its latest version NHibernate 4.0, it doesn't

NH-3640 - To work with those tables I use nhibernate feature NH-3640 - Inner Join on reffered entities in union-subclass should work correct #1327.

NH-3813 - NH-3813 - Eager fetch on key-many-to-one relation adds inner joins to the query #766. Open. nhibernate-bot opened this issue on Oct 12,

Hibernate Community • View topic - Hi, I'm really new to NHibernate and I'm allocated to a project using Flex, .Net and NHibernate. The custom company framework for NHibernate