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Using the join operator you can only perform equijoins. Other types of joins can be constructed using other operators. I'm not sure whether the exact join you are trying to do would be easier using these methods or by changing the where clause. Documentation on the join clause can be found here.
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.
Example to Understand LINQ Join Method: The following example code demonstrates how to perform an inner join between two collections, customers and orders, based on a common key (CustomerId in orders matching Id in customers). The aim is to pair each order with the name of the customer who made it.
Check 35 LINQ Interview Questions and Answers and Land Your Next Six-Figure Job Offer! 100% Tech Interview Success! When it comes to querying databases, LINQ is in most cases a significantly more productive querying language than SQL.
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.
29 maj 2024 · The join methods provided in the LINQ framework are Join and GroupJoin. These methods perform equijoins, or joins that match two data sources based on equality of their keys. (For comparison, Transact-SQL supports join operators other than equals, for example the less than operator.)
7 wrz 2023 · LINQ provides a fluent, intuitive and consistent way to query data sets. See how LINQ join operations simplify queries on multiple data sets
