New Step by Step Map For dapper tutorial for beginners

New Step by Step Map For dapper tutorial for beginners

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Right before using Dapper in our project, we must put together a database and produce a new Internet API task. So, Allow’s start with the database.

Efficiency: Dapper is unbelievably quick and effective. It minimizes the overhead of mapping effects to objects, resulting in significant-general performance databases entry. ️

QueryMultiple – an extension strategy that executes numerous queries inside the similar command and maps outcomes

Working with the update and delete is really uncomplicated due to the fact we already have each of the essential expertise. So, Allow’s jump straight on the code.

We’ll use check out-capture blocks in Each individual action inside our controller for the instance’s sake. But to stay away from code repetition, we strongly counsel studying our World-wide Error Dealing with posting.

Async solutions. The 10 samples I’ve created reveals how the above strategies can be employed. Enable’s Have a look at them prior to fidgeting with the sample code:

As you are able to see, once we end making use of our connection, we have to dispose of it. After we develop a connection, we can easily use it to call the QueryAsync process and move the question as an argument. Considering that the QueryAsync() approach returns IEnumerable, we transform it to a listing once we want to return a final result.

You might have comprehensive Command more than how parameters are despatched towards the database, as you could see from what get executed:

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

In these tutorials, we provide a fingers-on approach to the subject with phase-by-action software illustrations that should assist you in Studying and putting the acquired information into follow.

Now you have a thoroughly functional API that can connect with a SQL Server database using Dapper. You know how to dapper tutorial for beginners fetch data with the database, insert new documents, update current kinds, and delete records you not need to have.

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This technique is almost the same as the former one particular, but with a person exception due to the fact we've been using the QuerySingleOrDefaultAsync system here and provide an nameless item as the second argument.

This technique executes a query that doesn’t return any resultset. Its return worth consists of that number of rows afflicted because of the query. When the executed really generates a resultset, that will be discarded.

Simplicity at its Main: Dapper.Internet concentrates on simplicity and ease of use. It doesn't try and abstract absent the database, allowing for you to write down and improve your SQL queries right.