How to get the count of members from different year in table

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In my database I have data like this

Id | MemberName | CreatedAt |
____________________________
1  | Dhinnaa   | 14-06-2001
2  | senthil   | 11-03-2002
3  | Jhonson   | 22-06-2002
4  | DanielD   | 30-11-2007
5  | Henryee   | 01-01-2008
6  | AnilRex   | 06-07-2008
7  | RexDani   | 01-03-2008

i need to get like this

year1 (1)
year2 (2)
year3 (1)
year4 (3)

How to write query or linq to get this?

Posted 4-Jul-13 19:24pm

dineshdena

Updated 7-Jul-13 1:48am

Maciej Los

v2

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Thanks7872 5-Jul-13 1:29am

what does year(1),year(2) means?whats the relavance between data and the output?

dineshdena 5-Jul-13 1:44am

im having the company started at 2001 and i want to calculate the total members who are all added to my company on every year. so 2001,2002,2003 years in want to show like year1,year2,year3 and the count of members at 2001 as year1(count) and 2001 as year2(count)

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ArunRajendra · Answer 1 · 2013-07-04T19:49:00

If you want to do in at the database end follow this.

SQL

declare @tab1 table
(
    id int,
    nam varchar(20),
    cdate  date
)

insert into @tab1 values(1,'Dhinnaa','06/14/2001')
insert into @tab1 values(2,'senthil','06/14/2002')
insert into @tab1 values(3,'Jhonson','06/14/2007')
insert into @tab1 values(4,'DanielD','06/14/2008')
insert into @tab1 values(5,'Henryee','06/14/2002')
insert into @tab1 values(6,'AnilRex','06/14/2008')
insert into @tab1 values(7,'RexDani','06/14/2008')

select  'year(' + cast((ROW_NUMBER() over (order by cyear)) as varchar) + ')',cyear   from
(select count(p.id) idcount,cyear cyear from (
select  id,DATEPART(yy,cdate) as cyear from @tab1) p
group by cyear) q

-- U can try like this also, 

SELECT T.Year, 'Year('+CAST(ROW_NUMBER() OVER(ORDER BY T.Year) AS VARCHAR(5))+')' 'YearCount'
FROM (SELECT YEAR(cdate) 'Year', COUNT(ID) 'RecCount'
	  FROM @tab1 GROUP BY YEAR(cdate)) T

Jameel VM · Answer 2 · 2013-07-04T19:29:00

Solution 1

Try this

C#

foreach(var item in data.GroupBy(x => x.CreatedAt)
                        .Select(group => new {
                             CreatedAt = group.Key,
                             Count = group.Count()
                        })
                        .OrderBy(x => x.CreatedAt)
{
     Console.WriteLine("{0} {1}", item.CreatedAt, item.Count);
}

Hope this helps

Posted 4-Jul-13 19:29pm

Jameel VM

Comments

dineshdena 5-Jul-13 2:36am

Hello thanq for your reply i find the query for that but i want it in linq will you please help me out thanks in advance.

select year(CreatedAt),count(MemberID) from Members
where ID = 1
group by year(CreatedAt)