This technique accepts our question for a parameter along with a Func delegate that accepts two parameters of sort Firm close Staff. Inside the delegate, we try and extract a company by its Id worth. If it doesn’t exist, we retail outlet it In the currentCompany variable and insert it to your dictionary. Also, we assign all the staff to that existing corporation and return it from a Func delegate.

Listed here’s a summary what you can assume to become returned by Each individual approach in the event that your query return no rows, one particular row or multiple rows:

QueryMultiple – an extension system that executes multiple queries inside the very same command and maps success

Procedures incoming requests, manipulates facts using the product, and renders the ultimate output for your see.

Execute – an extension process that we use to execute a command 1 or several moments and return the quantity of afflicted rows

Once we get many final results In the multi variable, we will extract both benefits (business and workforce per that corporation) by using the ReadSignleOrDefaultAsync and ReadAsync approaches. The first strategy returns a single end result, though the second returns a group.

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Inside of a previous case in point, we made use of two SQL statements to return two results and then sign up for them alongside one another in only one item. But normally, for these kinds of queries, we don’t want to write down two SQL statements.

So what will come about is, we outline the interfaces for Repositories in this article, and implement these interfaces at A different layer which is affiliated with Data access, in our scenario, Dapper.

A few notes right here. Given that we don’t have any organization logic, we aren't creating a services layer to wrap our repository layer. For this type of software, the provider layer would simply call repository solutions and almost nothing far more, including an pointless level of complexity to your write-up. Obviously, we normally advise utilizing the support layer in much larger-scale programs.

Lightweight: Dapper is a lightweight library with nominal dependencies. It doesn’t impose any complex configuration or setup, which makes it straightforward to combine into your jobs.

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If you dapper tutorial for beginners need to learn more about why we use this DTO (and we're going to use A different one particular for your Update motion), it is possible to go through our ASP.Web Core Internet API number of articles or blog posts, exactly where we demonstrate The explanation powering this (article content 5 and six in the collection).

Simplicity at its Core: Dapper.NET concentrates on simplicity and simplicity of use. It does not try and summary absent the databases, enabling you to jot down and improve your SQL queries immediately.