LINQ Query Returning Duplicate Entries When Joining Multiple Tables in Entity Framework Core
I'm trying to configure I'm testing a new approach and I'm sure I'm missing something obvious here, but After trying multiple solutions online, I still can't figure this out... I'm experiencing an issue where my LINQ query is returning duplicate entries when joining multiple tables using Entity Framework Core 6. I have three tables: `Orders`, `Customers`, and `Products`. The `Orders` table has a foreign key to both the `Customers` and `Products` tables. When I try to join these tables to get a list of orders along with customer and product details, I'm seeing duplicate orders in the result set. Here's the basic structure of my entities: ```csharp public class Order { public int Id { get; set; } public int CustomerId { get; set; } public int ProductId { get; set; } public DateTime OrderDate { get; set; } public virtual Customer Customer { get; set; } public virtual Product Product { get; set; } } public class Customer { public int Id { get; set; } public string Name { get; set; } public virtual ICollection<Order> Orders { get; set; } } public class Product { public int Id { get; set; } public string ProductName { get; set; } public virtual ICollection<Order> Orders { get; set; } } ``` Here’s the LINQ query I’m using: ```csharp var result = from order in context.Orders join customer in context.Customers on order.CustomerId equals customer.Id join product in context.Products on order.ProductId equals product.Id select new { OrderId = order.Id, CustomerName = customer.Name, ProductName = product.ProductName, OrderDate = order.OrderDate }; ``` I expected to get a unique list of orders, but instead, I'm getting multiple entries for the same order. To troubleshoot, I’ve tried using `Distinct()` on the result set, but that didn’t solve the problem. I also checked for duplicate records in the database itself, and they seem to be unique. Could this be related to how the joins are structured? Or is there a better way to achieve this in Entity Framework? Any insights would be appreciated! My development environment is Linux. Any help would be greatly appreciated! I recently upgraded to Csharp 3.11. This is my first time working with Csharp LTS. What am I doing wrong? Am I approaching this the right way? I'm working on a CLI tool that needs to handle this. This is my first time working with Csharp stable.