The best Side of dapper tutorial for beginners

The best Side of dapper tutorial for beginners

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Right before working with Dapper inside our task, we have to prepare a databases and produce a new Internet API project. So, Permit’s start with the databases.

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

QueryMultiple – an extension approach that executes various queries within the exact command and maps final results

Dynamic Parameters are Particularly great for elaborate saved technique, in the event you want manage also a return value:

As mentioned while in the subtitle, in this post I’ll focus on the basic principles of Dapper .Internet, and all it will take to have familiar with it are merely ten samples I've made and posted on GitHub, right here:

Furthermore, should you be Functioning within an environment where you're handling an current databases or simply a workforce that handles the databases design, Dapper could be ideal for you!

Executing raw SQL Queries is usually rapid. Development of initiatives are performed much faster when working with Dapper considering that it is extremely uncomplicated to master and does not have further features like EF Core which needs a while to be familiar with.

community class Employee general public int Id get; established; community string Name get; set; general public int Age get; established; public string Place get; established; general public int CompanyId get; dapper tutorial for beginners set;

QueryFirstOrDefault – we use this technique to execute a query and map the initial result or a default value When the sequence is made up of no factors

In these tutorials, we provide a fingers-on approach to the topic with action-by-move plan examples that may support you in learning and Placing the obtained knowledge into practice.

Now you've got a absolutely functional API that could connect with a SQL Server database employing Dapper. You know how to fetch information with the databases, include new data, update present ones, and delete information you not have to have.

Future up, you’ll see how to determine a relationship into the SQL Server employing a relationship string during the appsettings.json. From there, we’ll write the code that interacts with our databases, sending queries as a result of Dapper to accomplish the CRUD functions.

This solutions executes a query that return a resultset made from particularly a single row and one column. Just like the superior previous IDBCommand.ExecuteScalar.

This method executes a question that doesn’t return any resultset. Its return price is made up of that variety of rows affected by the question. In case the executed truly generates a resultset, which will be discarded.

Simplicity: Dapper gives a simple and intuitive API for executing queries and mapping success. It means that you can publish SQL queries immediately, providing you with complete Command above your databases interactions.