This process accepts our question like a parameter and a Func delegate that accepts two parameters of kind Enterprise conclusion Employee. Within the delegate, we attempt to extract a corporation by its Id price. If it doesn’t exist, we retail store it In the currentCompany variable and increase it into the dictionary. Also, we assign all the workers to that present corporation and return it from a Func delegate.
Using the QueryMultipleAsync() strategy, we can certainly execute many SQL statements and return several results in one question. Permit’s see how to do this by having an illustration.
QueryMultiple – an extension strategy that executes various queries inside the same command and maps results
Dynamic Parameters are Specifically perfect for complicated saved technique, in the event you want manage also a return value:
As mentioned while in the subtitle, in the following paragraphs I’ll center on the basic principles of Dapper .Web, and all it will require to receive informed about it are merely ten samples I've designed and posted on GitHub, listed here:
Now, if we simply call this technique and go a company for creation to it, it is going to develop a new entity for us. But, though creating API’s Publish action, it is an efficient follow to return a backlink, which the API’s buyers can use to navigate to the produced entity.
We’ll tell you about just the repository method exactly where we put into action transactions. All the rest is quite straightforward as we repeated the measures numerous instances in this post:
community course Employee community int Id get; established; general public string Name get; set; general public int Age get; established; public string Placement get; established; public int CompanyId get; set;
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Now you've got a absolutely functional API which will interact with a SQL Server database working with Dapper. You understand how to fetch info within the database, incorporate new documents, update present ones, and delete information you now not require.
Future up, you’ll see how to establish a connection to the SQL Server using a connection string inside the appsettings.json. From there, we’ll compose the code that interacts with our database, sending queries by way of Dapper to complete the CRUD functions.
var sql = @"choose * from autos exactly where Id = @id1; decide on * from cars in which Id = @id2; find * from cars the place Id = @id3";
To accomplish CRUD operations during the database, we must create a connection with the database utilizing a databases connection.
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