Linq group by select max row

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NettetGroupBy (IEnumerable, Func, Func,TResult>, IEqualityComparer) Groups the … Nettet5. mar. 2024 · 1 solution Solution 1 Start by simplifying your SQL query: SQL SELECT memberid, spid, score FROM Mem_Gifts As e WHERE score = ( SELECT MAX (w.score) FROM Mem As w WHERE w.memberid = e.memberid ) ; No need for the GROUP BY or HAVING clauses, since you're using a correlated sub-query. To get a similar result in …

Group query results (LINQ in C#) Microsoft Learn

NettetThis will require you to group by team name then select the max score. The only tricky part is getting the corresponding player, but its not too bad. Just select the player with … Nettet8 timer siden · I have two tables of baseball data. One has batter WAR and the other pitching WAR. I can get the result I'm looking for (in this case Babe Ruth's pitching and batting WAR) in the Union statement but not the Join statement. asiah abdul rahim

对查询结果进行分组（C# 中的 LINQ） Microsoft Learn

Nettet7. okt. 2024 · You can't generate a single row for each "first_name" value (which is what group by first_name does) withtout telling which id or last_name value you want to keep inside each group of rows (using MIN, MAX or some other aggregation function as you have done for birthday). Explain perhaps what you actually want in English ? Nettet19. jan. 2014 · In SQL it would be a MAX() function but not sure how to do the equivalent in LINQ. Basically I want to select the row that has the highest BreadCrumbID WHERE … NettetIn the final query we are using CASE statements to pivot the data and aggregating the result for each UCC12UPCCode with MAX to create a single row for each UCC12UPCCode. This query can be run over multiple UCC12UPCCode 's Share Improve this answer Follow edited May 8, 2024 at 20:13 answered May 8, 2024 at 20:06 MickyT … asia guy

[Solved]-LINQ select row with max value after group by-LINQ,C#

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Nettet4. jun. 2010 · Just getting my head around Linq and having lots of fun! Can any one aid me with a query for this: I have a list of data: Key Value Aaa 12 AaA 10 AAa 5 BBB 2 … NettetGroups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by … asia habitat landscape awardNettet30. okt. 2013 · Just answering the first sentence, use GroupBy + OrderByDescending and First: IEnumerable tapeMaskQuery = table.AsEnumerable() .GroupBy(row … asia haarentfernung

"Nettet26. apr. 2024 · Store GroupBy expression to a variable of type IEnumerable< Object > The Output of this returns: Concatenate the header to the items in the list using .Split and .Select You can split by comma, then use Select, and select the item split by “=” Without the headers, we have this: So our new output looks like this with headers: " - Linq group by select max row

Linq group by select max row

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NettetThis is one of the frequently asked SQL Server Questions. Shutdown Microsoft SQL Server 2000, and then run Rebuildm.exe. This is located in the Program Files\Microsoft SQL Server\80\Tools\Binn directory. In the Rebuild Master dialog box, click Browse. In the Browse for Folder dialog box, select the \Data folder on the SQL Server 2000 compact ... Nettet1. feb. 2012 · You can group by status and select a row from the largest group: table.GroupBy (r => r.Status).OrderByDescending (g => g.Key).First ().First (); The …

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Nettet30. jun. 2010 · You can use Max to implement it. var result = (from td in Data.TimeDatas where td.EmployeeID == 10017 //filter by employee && td.WorkDate.Date >= … NettetThe LINQ GroupBy Method in C# belongs to the Grouping Operators Category. This method exactly does the same thing as the Group By clause does in SQL Query. This method takes a flat sequence of elements and then organizes the elements into groups (i.e. IGrouping) based on a given key.

NettetUsing Linq to select maximum value in a group Get excel cell value with Row and Column Position through open xml sdk linq query C# LINQ Select objects with the … Nettet29. mar. 2024 · Linq group by multiple columns and sum Select multiple fields group by and sum Linq to SQL Group by and Sum in Select Linq To SQL Group By and Sum Reading CSV File with cells containing commas c# Split CSV with columns may contain ‘,’ Comma C# [Simple Way]-Cascading DropDownList in Asp.Net Mvc Using Jquery Ajax

Nettet18. jul. 2016 · I'm trying to select multiple columns not in a group by using linq - c#. Using linq, I'm trying to group by ISNULL (fieldOne,''),ISNULL (fieldTo,'') and then select … NettetOnce you click on the Next button, it will open the System class window. Here, we need to select what type of installation of Oracle 19c we want to perform. It gives us two options. The first option is Desktop Class – We need to choose this option when we are installing Oracle Database 19c on our desktop or laptop.

Nettet16. aug. 2024 · Here is the LINQ query in C# var output = from row in SourceDT.AsEnumerable () group row by new {Col1 = row.Field ("Col 1"), … asia'hNettet8. apr. 2013 · Unfortunately LINQ doesn't provide a simple way of getting "the element with the maximal value" (instead of the maximal value itself). I have a method in MoreLINQ … asiahai industriesNettet12. feb. 2024 · luthier Updated 12-Feb-20 6:51am v3 Add a Solution 2 solutions Top Rated Most Recent Solution 1 Check this out: VB.NET Expand Dim dt As DataTable = New DataTable () dt.Columns.AddRange ( New DataColumn () { New DataColumn ( "Ct", Type. GetType ( "System.String" )), New DataColumn ( "Ad", Type. asiagurkaNettet28. jun. 2012 · I want to do a LINQ query that will return the Max sales per Console group listing the Name, Console, Year, and Sales. Ok then you may need to clarify your requirement. According to above question; Name is from Parent table, and [Console, Year and Sales] is from Group-ing table. you also want Max sale from each group. asia gulf job paper todayNettet6 timer siden · The problem is not with 10 to 15 rows, that is manageable, the problem comes when i have more than 130 rows in the Data table, that is when it starts impacting the performance of the code. Two Tables, Top one is Source Datatable and bottom is To be Datatable. Currently what I am doing is, I am first creating a temp table with unique … asia gzNettetLINQ to SQL: GroupBy () and Max () to get the object with latest date Ask Question Asked 13 years, 4 months ago Modified 4 years ago Viewed 48k times 48 Consider a SQL … asiahai industries sdn bhdNettet1. sep. 2024 · The LINQ SelectMany operator allows you to enumerate over a collection selector for each outer element and generate tuples of values from each data source. In a way, it's a join but without any condition so every outer element is connected with an element from the collection source. asiah abdul jalil