Before applying Dapper within our venture, we have to prepare a databases and produce a new Web API job. So, Allow’s get started with the database.
Performance: Dapper is amazingly rapidly and economical. It minimizes the overhead of mapping results to objects, resulting in higher-efficiency database accessibility. ️
QueryMultiple – an extension technique that executes a number of queries throughout the same command and maps final results
The moment Dapper deal is mounted, we have been wanting to accomplish databases operations in our .NET application. During the underneath code we have been inserting a file into a database desk with Dapper.
As explained within the subtitle, in this post I’ll center on the basic principles of Dapper .Web, and all it will require for getting familiar with it are just ten samples I've designed and posted on GitHub, listed here:
In addition, if you're Functioning within an environment where you're handling an present databases or a crew that handles the databases structure, Dapper may be perfect for you!
In this article, we create a variable that contains a procedure name and also a dynamic parameter item with just one parameter within. Mainly because our saved technique returns a price, we utilize the QueryFirstOrDefaultAsync method to execute it.
You have got entire Manage around how parameters are sent into the database, as you could see from what get executed:
As it is possible to see, our query variable is made up of two Decide on statements. The 1st will return only one enterprise, and the 2nd a person will return all the workers of that corporation. Following that, we develop a link after which use that connection to contact the QueryMultipleAsync technique.
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Executes a query and maps the result to a summary of dynamic objects or, if specified, to a listing of strongly typed objects:
Transactions are very uncomplicated to implement with Dapper. We could execute it using the Dapper library (the a single we currently use) or the Dappr.Transaction library, which is identical matter as Dapper, just Together with the extended IDbConnection interface. Inside our illustration, we are going to utilize the Dapper library.
var sql = @"choose * from autos where Id = @id1; pick * from autos exactly where Id = @id2; decide on * from cars and trucks where Id = @id3";
What is your experience with Dapper? Could it be your goto Software with your jobs or would you relatively dapper tutorial for beginners use Entity Framework or another thing?
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