Entity FrameWork QUERY

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i have a table where multiple record against one employee present,and there are a number of employee also. i want to get list of last records enter against all employee.

Posted 1-Feb-15 21:51pm

Sajid227

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3 solutions

Solution 1

Hi,

As you are having multiple records for multiple employees to find the latest record you have to use "Order By" clause with "Descending" property.

Then you have to use "Group By" clause to group your employees.

Then you have to select the "Partition By" record from the descending order based on the employeeID and select the top one record.

Hope you got the logic to implement the solution here.

For reference use this link.

Thanks
Sisir Patro

Posted 1-Feb-15 22:08pm

Sisir Patro

Updated 2-Feb-15 0:14am

v4

Solution 3

C#

var records =
         context.Employees.GroupBy(e=>EmpID)
                          .Select(grp=>grp.OrderByDescending(g=>g.enterDate).First());

Posted 1-Feb-15 23:28pm

DamithSL

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Atish K. Singh · Accepted Answer · 2015-02-01T22:56:00

Solution 2

C#

var Employees = Emp.OrderByDescending(x => x.CreatedDate).GroupBy(x => x.EmpID).Select(x => x.First()).AsQueryable();

It will return the record of each EmployeeID with max Creation date.
Hope this helps you.

Updated

Posted 1-Feb-15 22:56pm

Atish K. Singh

Updated 1-Feb-15 23:18pm

v2