Linq group by count where

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Nettetvar results = (from r in employees group r by new { r.Department, r.Country } into gp select new { DepartmentId = gp.Key.Department, Country = gp.Key.Country, TotalSalary = … Nettet13. nov. 2016 · Inside count you can give the condition like below, Note that I have removed AnswerPower from GroupBy var query = ex.ExamResults .GroupBy(p => …

How to use LINQ group by with where clause - Stack …

NettetYou shouldn't need the left join at all if all you're doing is Count(). Note that join...into is actually translated to GroupJoin which returns groupings like … Nettet18. feb. 2024 · Grouping is one of the most powerful capabilities of LINQ. The following examples show how to group data in various ways: By a single property. By the first … the brick timmins warehouse

c# - Linq .GroupBy() with count - Stack Overflow

Nettet8. mar. 2016 · My tsql that works as intended. SELECT Type1, Count (Pro.transportId) as Count FROM dbo.stores as sto left Join dbo.products as pro on (sto.Type1 = pro.Type … NettetModified 6 years, 9 months ago. Viewed 159k times. 67. I have to perform the following SQL query: select answer_nbr, count (distinct user_nbr) from tpoll_answer where … Nettet15. sep. 2024 · Language-Integrated Query (LINQ) makes it easy to access database information and execute queries. The following example shows how to create a new … the brick timmins ontario

How to: Count, Sum, or Average Data by Using LINQ - Visual Basic

Linq group by count where

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Nettet15. jul. 2010 · You should try to avoid using the Count() method as a way to check whether a sequence is empty or not. Phil Haack has an excellent article on his blog … Nettet16. jan. 2010 · 3 Answers. Sorted by: 364. Like this: from c in db.Company group c by c.Name into grp where grp.Count () > 1 select grp.Key. Or, using the method syntax: …

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Nettet13. mai 2013 · List result = Lines .GroupBy(l => l.ProductCode) .Select(cl => new Models.ResultLine { ProductName = cl.select(x=>x.Name).FirstOrDefault(), … NettetThe GroupBy (IEnumerable, Func) method returns a collection of IGrouping objects, one for each distinct key …

NettetAfter calling GroupBy, you get a series of groups IEnumerable, where each Grouping itself exposes the Key used to create the group and also is an IEnumerable of whatever items are in your original data set. You just have to call Count() on that … Nettet29. nov. 2024 · There is no such separation in LINQ, it's all just WHERE: 1 var groups = 2 from e in employees 3 group e by e.GroupCode.ToUpper().Substring(0, 2) into g 4 …

Nettet26. jan. 2011 · Your LINQ query is counting the number of groups but your SQL query is producing the counts by group. You want. var counts = tableName.GroupBy (x => … Nettetvar counts = from item in Orders group item by new { item.Status } into g select new {status=g.Key, count=g.Count()}; This will return one object per status value with its …

Nettet3. apr. 2016 · I've tried many examples (i.e. Linq with group by having count ), but I still get more results (as is the WHERE is skipped). My code is like this: var test = …

NettetCounting Using Group By Linq. In a List I want to output All distinct Name and how many times the particular appears in the collection. Notice1.Name="Travel" … the brick top load washerNettet10. jul. 2024 · First in SQL I wrote an query for grouping: select d."AttachId", count(d."AttachId") from "Documents" d group by d."AttachId" having … the brick top load washing machinesNettet28. jul. 2016 · select p.*, t.total as 'Total Orders' from ( select CustomerName, count(CustomerId) total from Orders group by CustomerName ) as t inner join ( select * … the brick tournament edmonton