The Greatest Guide To dapper tutorial for beginners

The Greatest Guide To dapper tutorial for beginners

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Before employing Dapper inside our venture, we have to put together a database and make a new Website API job. So, Allow’s get started with the database.

Using the QueryMultipleAsync() approach, we can easily execute multiple SQL statements and return multiple brings about only one question. Allow’s see how to do that having an illustration.

Accessibility the complete implementation and learn the way all the things will work under the hood. Do not forget to star my GitHub repo if you find it useful!

Working with the update and delete is really uncomplicated mainly because we already have all of the demanded know-how. So, Allow’s jump straight into the code.

As reported in the subtitle, in this article I’ll concentrate on the basics of Dapper .NET, and all it will take to obtain knowledgeable about it are only 10 samples I've established and posted on GitHub, in this article:

Since Dapper.Web does not abstract absent the database or offer computerized migrations, You will need to control your database schema and deal with schema modifications manually.

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Needless to say, In case you have requested Dapper to return a specific type, like the Person from dapper tutorial for beginners the sample code proven just before, you will have the asked for object returned rather than “Row”.

QuerySingle – an extension system that executes a question and maps the result. It throws an exception if there is not precisely 1 element in the sequence

public int CustomerID get; established; community string FirstName get; set; public string LastName get; established; community string Electronic mail get; established;

It is one of the speediest and simplest all around, however it's very extensible and, over all, perfectly adopted and used in incredibly higher-effectiveness Web sites. Additional specifically has become developed and it is preserved by the fellows behind StackOverflow, so you're able to ensure it's battle-examined. Supply code is on GitHub

This procedures executes a query that return a resultset product of just 1 row and just one column. Just like the fantastic old IDBCommand.ExecuteScalar.

This technique executes a query that doesn’t return any resultset. Its return value contains that number of rows afflicted because of the query. When the executed actually generates a resultset, that should be discarded.

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