WebJan 9, 2024 · 1 Answer. The problem is caused by the ' {' and '}' symbols inside SQL string, because in ExecuteSqlRaw {Async} they are used to specify parameter placeholders, so the string should be a valid input for string.Format function. In fact EF Core implementation uses string.Format (even though you don't pass parameters) at some point, which in turn ... WebSep 29, 2024 · ExecuteSqlRawAsync is an extension method on DatabaseFacade so you have a few options. Here's a couple... Expose the Database property in your interface by …

Asynchronous Generic Repository in ASP.NET Core Web API

WebFeb 10, 2024 · Limitations. Entity Framework Core allows you to drop down to SQL queries when working with a relational database. SQL queries are useful if the query you want can't be expressed using LINQ, or if a LINQ query causes EF to generate inefficient SQL. SQL queries can return regular entity types or keyless entity types that are part of your model. red42 gmbh

Using SQL Server Cursors with Entity Framework Core

WebMar 29, 2011 · The following example (not my real example) doesn't work. var firstName = "John"; var id = 12; var sql = @"Update [User] SET FirstName = @FirstName WHERE Id = @Id"; ctx.Database.ExecuteSqlCommand (sql, firstName, id); WebMay 17, 2024 · Open a database transaction. Create a cursor definition using the Declare Cursor construct. Open the cursor to start the iteration process. Use the FETCH keyword to get the next row of interest. Once complete, CLOSE and DEALLOCATE the cursor. You’ll see an explicit example of a cursor further in the article. WebNov 18, 2024 · In this case, two SQL commands are executed: a SELECT command that returns all users aged 30 and a TRUNCATE command that erases all the data in the users’ table after executing the select command. Figure – Stored Procedure Example 1 Stored Procedure example 2 As another example, let us consider the following stored … red42804