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left join in linq

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Nanu answered on July 20, 2021 Popularity 8/10 Helpfulness 3/10

answer left join in linq

related Left Joins In Linq

related linq left join

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left join in linq

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var q =
    from c in categories
    join pt in products on c.Category equals pt.Category into ps_jointable
    from p in ps_jointable.DefaultIfEmpty()
    select new { Category = c, ProductName = p == null ? "(No products)" : p.ProductName };

Popularity 8/10 Helpfulness 3/10 Language whatever

Source: stackoverflow.com

Tags: left-join linq whatever

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Contributed on May 10 2023

Nanu

0 Answers Avg Quality 2/10

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Left Joins In Linq

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using System.Linq;
using System;
namespace LINQJoin
{
    class Program
    {
        static void Main(string[] args)
        {
            var QSOuterJoin = from emp in Employee.GetAllEmployees()
                              join add in Address.GetAddress()
                              on emp.AddressId equals add.ID                               
                              into EmployeeAddressGroup
                              from address in EmployeeAddressGroup.DefaultIfEmpty()
                              select new {emp, address };
            
            foreach (var item in QSOuterJoin)
            {
                Console.WriteLine($"Name : {item.emp.Name}, Address : {item.address?.AddressLine} ");
            }

            Console.ReadLine();
        }
    }
}

Popularity 10/10 Helpfulness 4/10 Language whatever

Source: Grepper

Tags: linq

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Contributed on Jun 20 2022

Exuberant Eland

0 Answers Avg Quality 2/10

linq left join

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IQueryable<Job> jobs = (from j in _db.Jobs

                join jt in _db.JobTranslators on j.Id equals jt.JobId into jts
                from jtResult in jts.DefaultIfEmpty()

                join jr in _db.JobRevisors on jtResult.Id equals jr.JobId into jrs
                from jrResult in jrs.DefaultIfEmpty()


                join u in _db.Users on jtResult.UserId equals u.Id into jtU
                from jtUResult in jtU.DefaultIfEmpty()

                where jtUResult.Id == userId

                orderby j.Id

                select j).Concat(
                from j in _db.Jobs

                join jt in _db.JobTranslators on j.Id equals jt.JobId into jts
                from jtResult in jts.DefaultIfEmpty()

                join jr in _db.JobRevisors on jtResult.Id equals jr.JobId into jrs
                from jrResult in jrs.DefaultIfEmpty()

                join u in _db.Users on jrResult.UserId equals u.Id into jrU
                from jrUResult in jrU.DefaultIfEmpty()

                where jtUResult.Id == userId

                orderby j.Id

                select j
                ).Distinct()

Popularity 10/10 Helpfulness 3/10 Language whatever

Source: stackoverflow.com

Tags: left-join left

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Contributed on Jul 20 2021

Quaint Quoll

0 Answers Avg Quality 2/10

linq left join

Comment

from f in _db.Foo
join b in _db.Bar on f.BarId equals b.Id into b_j
	from b in b_j.DefaultIfEmpty()
select new { f, b }

Popularity 9/10 Helpfulness 2/10 Language csharp

Source: Grepper

Tags: c# left-join left-jo

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Contributed on Feb 06 2023

Mark Smith

0 Answers Avg Quality 2/10

left join in linq query syntax

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(from CRC in ent.ComRegistrationCentres
                         join CS in ent.ComStates on CRC.DistrictCd equals CS.DistrictCd 
                         join CD in ent.ComDistricts on CRC.DistrictCd equals CD.DistrictCd
                         join CVM in ent.ComVdcMunicipalities on CRC.VdcMunCd equals CVM.VdcMunCd
                         where CRC.RegCentreCd == Reg_center_id
                         select new BoothInfoAssignModel
                         {
                             ProvinceName =CS.DescLoc ,
                             DistrictName =CD.DescLoc,
                             MunicipalityName =CVM.DescLoc,
                             BoothName =CRC.DescLoc,
                         }).FirstOrDefault();

Popularity 9/10 Helpfulness 2/10 Language whatever

Source: Grepper

Tags: left-join left

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Contributed on Nov 03 2022

bhuwan joshi

0 Answers Avg Quality 2/10

left join in linq

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