WebThe Single method generates a SELECT TOP(2) query. If more than one result is returned by the query, ... In Entity Framework Core, the "Like" operator can be used in LINQ queries to filter data based on a specified pattern. ... For example, the following LINQ query retrieves all rows from the Customers table where the City column starts with "L ... WebMay 7, 2024 · How to select top N rows for each group in a Entity Framework GroupBy with EF 3.1 (1 answer) Problem with EF OrderBy after migration to .net core 3.1 (1 answer ... Selecting distinct rows but always select the last one. 1 get Current record selected in group by lambdada expression. 1 First() could not be translated when accessing first …
Ef Core 3 .GroupBy() Select one of each group by date
WebNov 18, 2013 · Viewed 4k times. 5. I have a configuration table in my database and it contains exactly one row. ConfirmedScheduleColor OverlappedScheduleColor ColN. Currently, I'm retrieving the configuration like this: var db = new SchedulingDbContext (); var config = db.Configurations.FirstOrDefault (); It's currently working fine and I can access … WebOct 14, 2024 · The Find method on DbSet uses the primary key value to attempt to find an entity tracked by the context. If the entity is not found in the context then a query will be … el dorado hills monthly weather
Select a single object from Entity IQueryable List of object
Web2 Answers. Fix your primary key definition in your EDMX. (If your table has no PK, add one.) When all rows return the same "key", the EF returns the same object instance. Bingo. I'm using reporting tables set up by someone else and they didn't have a primary key. Thanks. Even if the developers call this a feature, I'm calling it a bug. Thanks a ... WebDec 15, 2011 · Entity Framework 4, with SQL Server 2008. Problem: I have a table Order. Each row has a column Timestamp. The user can choose some time in past and I need to get the Order closest to the specified time, but that had occurred before the specified time. In other words, the last order before the specified time. For example, if I have orders WebOct 14, 2024 · The Find method on DbSet uses the primary key value to attempt to find an entity tracked by the context. If the entity is not found in the context then a query will be sent to the database to find the entity there. Null is returned if the entity is not found in the context or in the database. Find is different from using a query in two ... food lion st. andrews rd columbia sc 29212