How do you implement optimistic concurrency in Entity Framework Core? What is the difference between 'FirstOrDefault()' and 'SingleOrDefault()' in LINQ with Entity Framework?

Jul 7, 2017 ... EF translates LINQ queries (known as LINQ to Entities) at runtime into the appropriate SQL statements so that they can be executed against a ... Jul 30, 2024 ... These methods include LINQ queries, FromSqlInterpolated, and FromSqlRaw with explicit parameters. Using LINQ. Language Integrated Query (LINQ) ... If the expression is rejected from your query provider (Entity Framework, NHibernate, etc.), ... LINQ can support aggregate queries, and AutoMapper supports LINQ ... Apr 23, 2010 ... Go with Entity Framework ("EF") - it now generates much better SQL (more like Linq to SQL does) and is easier to maintain and more powerful than Linq to SQL (" ... Distinct limits the values to only distinct, unique values. Using distinct, you can get one user for each record instead of getting multiple rows based on the ... Mar 11, 2022 ... var result = db.Set().Select(x => x.Code).ToList(); SELECT Code FROM Product Multiple var result = db.Set() .Select(x => new { x.Code, x. Jan 15, 2009 ... With LINQ to SQL, if you click the unused design surface, you can set the namespace for the Context separately from the Entities through the property window of ... Apr 6, 2022 ... C# Form ile Görsel ve Nesne Tabanlı Programlama kategorisinde Entity Framework Linq İstatistikler 3 eğitimini Turkcell Geleceği Yazanlar ... Aug 7, 2024 ... Definition. DELETE all rows from the database using a LINQ Query without loading entities in the context. · Purpose. Deleting entities using ... In SQL when the records to be BULK INSERT stored large number of records SQL table to Lock and until all the data into SQL will not be able to get a data ...

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what is linq and entity framework

• What are the common performance issues with LINQ and Entity Framework? What is the 'select' clause in LINQ?
• How do you use LINQ with data mining algorithms? How do you implement custom LINQ query result transformation logic to flatten nested data structures or reshape query results into specific formats required by the application layer with Entity Framework?
• How do you use LINQ with data visualization libraries and frameworks? How do you implement custom conventions to automatically configure string length or maximum size for string properties based on specific attributes or naming conventions in Entity Framework Core?
• What are the different strategies for handling database performance issues related to index fragmentation in Entity Framework applications?
• How do you query data in Entity Framework Core using LINQ? What is the 'elementAt' operator in LINQ?
• How does Entity Framework handle circular dependencies between entities?
• What are the different strategies for handling database schema changes in large, long-lived Entity Framework applications?
• How does LINQ handle different data sources?
• How do you use LINQ with linked data? How do you handle database-specific full-text search ranking algorithms and integrate them into LINQ query results with Entity Framework Core?
• What is Database First in Entity Framework?