Services
Technology Web App Development Mobile App Development Windows App Development Database Development UI/UX Development Cloud Development SEO Digital Marketing Guest Posting Content Writing Artificial Intelligence Data Science ERP Development CRM Development CMS Development LMS Development Business Listing Blockchain Technology Startup Promotion
Products
Data Converter Cleaner TUC - Unit Converter Import Export Survey Manager Tweet Controller
Developer
Article Blog Forum Interview Beginner News Startup Quiz
Users
Career
Apply Job Internship
Pricing
Login Sign Up Get a Quote

forum

home / developersection / forums / how can i calculate sum of column value in linq to sql query?
Ask Question

How can I calculate sum of column value in LINQ to SQL query?

Revati S Misra 682 27 Jul 2023

How can I calculate sum of column value in LINQ to SQL query?

linq linqlinq to sql
Updated 28 Jul 2023
Revati S Misra
Revati S Misra

Student

Skilled in SEO, content writing, and digital marketing. Completed several years of working in many organizations including multinational companies. I love to learn new things in life that keep me motivated.

Message

1 Answers

Aryan Kumar
Aryan Kumar 28 Jul 2023
Report Abuse

Sure, you can calculate the sum of a column value in a LINQ to SQL query using the Sum() method. The syntax is as follows:

C#

var sum = myTable.Sum(x => x.columnValue);

For example, if you have a table called products with a column called price, you could use the following LINQ to SQL query to calculate the sum of all product prices:

C#

var sum = products.Sum(x => x.price);

This would return the total sum of all product prices as an integer.

Here is an example of how to calculate the sum of a column value in a LINQ to SQL query in C#:

C#

using System;
using System.Data.Linq;

namespace LinqToSqlSum
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a LINQ to SQL query.
            var products = new LinqToSqlSumDataContext().Products;

            // Calculate the sum of all product prices.
            var sum = products.Sum(x => x.Price);

            // Display the sum.
            Console.WriteLine("The sum of all product prices is: {0}", sum);
        }
    }

    public class LinqToSqlSumDataContext : DbContext
    {
        public LinqToSqlSumDataContext()
        {
            Database.SetInitializer(new SqlServerInitializer());
        }

        public DbSet<Product> Products { get; set; }
    }

    public class Product
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public int Price { get; set; }
    }
}

This code will first create a LINQ to SQL query for the products table. Then, it will calculate the sum of all product prices using the Sum() method. Finally, it will display the sum on the console.

advertising