Fascination About dapper tutorial for beginners

Fascination About dapper tutorial for beginners

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Here’s a summary That which you can count on to be returned by Every single technique just in case your question return no rows, a single row or multiple rows:

Accessibility the total implementation and learn how every thing functions under the hood. Do not forget to star my GitHub repo if you find it helpful!

Dealing with the update and delete is quite easy due to the fact we already have all the demanded know-how. So, Permit’s jump straight into the code.

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QuerySingleOrDefault – executes a question and maps The end result or maybe a default worth if the sequence is vacant. It throws an exception when there is more than one element inside the sequence

Frequently, we produce a Perspective Together with the same title being an Action strategy, so let's build an Index check out and increase the next code.

As soon as Dapper is enabled you can alter the Language drop all the way down to C# System, map question effects to C# courses, and use the .Dump() process to inspect the results:

So what is going to occur is, we outline the interfaces for Repositories listed here, and carry out these interfaces at An additional layer that is connected with Facts accessibility, within our situation, Dapper.

We’ll also develop a uncomplicated repository layer to wrap the logic up to stay away from applying Dapper queries directly inside the controller.

Executes a question and maps The end result to an index of dynamic objects or, if specified, to a list of strongly typed objects:

Upcoming up, you’ll see how to establish a link on the SQL Server utilizing a link string while in the appsettings.json. From there, we’ll produce the code that interacts with our databases, sending queries by Dapper to accomplish the CRUD functions.

Right now, many of the Houses from the organization course hold the same names given that the columns within the businesses table. But what would materialize if People don’t match?

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