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The product is a set of lessons to connect with the databases. Now let us add an entity course Purchaser from the Model folder.
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Now, we're going to deal with a Article request inside our API and make use of the ExecuteAsync method to create a new firm entity in the databases.
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QuerySingleOrDefault – executes a query and maps The end result or possibly a default value If your sequence is empty. It throws an exception when there is multiple factor within the sequence
Generally, we develop a See While using the identical identify as an Action process, so let us develop an Index perspective and include the next code.
You have got whole control more than how parameters are despatched towards the databases, as you'll be able dapper tutorial for beginners to see from what get executed:
As you'll be able to see, our query variable is made up of two Pick out statements. The first will return a single business, and the second one will return all the workers of that firm. After that, we develop a connection and after that use that relationship to simply call the QueryMultipleAsync strategy.
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Lightweight: Dapper is a lightweight library with minimal dependencies. It doesn’t impose any elaborate configuration or set up, which makes it easy to integrate into your jobs.
Dapper.NET expects builders to possess a strong understanding of SQL as well as fundamental database framework
var sql = @"choose * from autos where Id = @id1; decide on * from cars and trucks exactly where Id = @id2; pick out * from cars in which Id = @id3";
In any case, Consequently if you only want a person row or you’re expecting just one row, there is no level in loading all the things in memory, and only then taking the initial row or examining if you bought accurately a single row, proper? That’s why the strategies supplied by Dapper really should be preferred. They'll just just take just one row, without the need of loading all of the Other individuals in memory. It might seem to be an exceptionally compact detail, but are those kind of details which make general performance fantastic instead of just excellent.
When talking about these extension procedures, we must say that Dapper supports synchronous and asynchronous technique executions. We’ll make use of the asynchronous Variation of those solutions.