Help me to convert Sql to linq

Question

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Hi

SQL

select D.CommonName,D.CoursesFK,D.DepartmentDetailsFK,
D.ID,D.LegalName,C.LegalName as Courses,DD.CourseYear as DepartmentID  from Departments D 
 join Courses C on C.ID=D.CoursesFK
 left outer join DepartmentDetails DD on DD.ID=D.DepartmentDetailsFK;

How to convert this MsSQL query to linq..?

Posted 16-Sep-12 19:33pm

suganyass

Updated 16-Sep-12 19:36pm

Mehdi Gholam

v2

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3 solutions

Solution 2

go through below site and download Linquer. It converts SQL query to Linq
http://www.sqltolinq.com/[^]

Posted 16-Sep-12 19:42pm

Sangramsingh Pawar

Solution 3

try this:

C#

From D In Departments Join C in Courses ON C.ID equals D.CoursesFK Group Join DD in DepartmentDetails on DD.ID equals D.DepartmentDetailsFK
select NEW {    D.CommonName,    D.CoursesFK,    D.DepartmentDetailsFK,    D.ID,    D.LegalName,
    C.LegalName as Courses,    DD.Courseyear as DepartmentID
}

See below Link.
It Will HelpFul For you.
Link 1[^]
Link 2[^]

Posted 16-Sep-12 19:54pm

prashant patil 4987

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Prasad_Kulkarni · Accepted Answer · 2012-09-16T19:40:00

Solution 1

Try something like this:

C#

from dept in Departments
JOIN course in courses ON dept.CoursesFK equals course.ID
JOIN deptDetail in DepartmentDetails ON dept.DepartmentDetailsFK equals deptDetail.ID
select NEW
{
    dept.CommonName,
    dept.CoursesFK,
    dept.DepartmentDetailsFK,
    dept.ID,
    dept.LegalName,
    course.LegalName as Courses,
    deptDetail.Courseyear as DepartmentID
}

Posted 16-Sep-12 19:40pm

Prasad_Kulkarni

Comments

suganyass 17-Sep-12 1:45am

Thanks for your reply. Tried that query. But not works. There is some problem in using join.

Prasad_Kulkarni 17-Sep-12 1:45am

What is it??

suganyass 17-Sep-12 1:52am

I got result, but result collection repeated twice.

Prasad_Kulkarni 17-Sep-12 1:53am

Add where condition, for your expected o/p.

suganyass 17-Sep-12 1:59am

I need all rows from departments.

suganyass 17-Sep-12 2:14am

Thank u so much... I got the answer... Its my small mistake

Prasad_Kulkarni 17-Sep-12 2:15am

Glad to hear that!
Can you post your answer here.

suganyass 17-Sep-12 2:20am

var DptList = from C in entities.Departments join DT in entities.DepartmentDetails on C.DepartmentDetailsFK
equals DT.ID join CR in entities.Courses on C.CoursesFK equals CR.ID
select new { C.ID, C.LegalName, C.CommonName, C.CoursesFK, DepId = DT.ID };

Prasad_Kulkarni 17-Sep-12 2:20am

Thank you :)