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Is it possible in LINQ to join on multiple fields in a single join? EDIT var result = from x in entity join y in entity2 on new { x.field1, x.field2 } equals new { y.field1, y.field2 }
The way you'd do a join on more than one criteria generally is to use an anonymous type: join pc in productcategory on new { Id = p.Id, Other = p.Other } equals new { Id = pc.ProdId, Other = pc.Other }. This works in Linq-to-Objects, and I presume the same will work with database queries as well.
In this article, we’ll take a look at how to use LINQ to join multiple tables on multiple conditions. We’ll start by discussing the basics of LINQ joins, and then we’ll show you how to use LINQ to join tables on different columns, on the same column, and on multiple columns.
17 cze 2013 · I have this query in SQL, and I want it to implement it in LINQ using Entity Framework, but how can I apply multiple tables left outer joins? SELECT d.bookingid, d.labid, d.processid, p.prid, p.prno, d.DestinationBranchID, d.SendStatus. FROM dc_tpatient_bookingd d. LEFT OUTER JOIN dc_tpatient_bookingm m ON d.bookingid = m.bookingid.
7 wrz 2023 · LINQ Inner Join With Multiple Conditions. If you want to use multiple conditions within your join, you can simply use more than one where clause. Let’s update our query once again:
29 mar 2024 · There are Different Types of SQL Joins that are used to query data from more than one database table. In this article, you will learn about how to write SQL joins queries in LINQ using C#. LINQ has a JOIN query operator that gives you SQL JOIN-like behavior and syntax.
LINQ provides several methods for performing joins, similar to SQL joins, to combine data from two or more collections based on a common key or condition. The primary join methods in LINQ are Join, GroupJoin, and SelectMany.
