dapper tutorial for beginners - An Overview

dapper tutorial for beginners - An Overview

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This process accepts our query as a parameter and a Func delegate that accepts two parameters of type Company close Staff. Inside the delegate, we seek to extract a corporation by its Id worth. If it doesn’t exist, we retailer it Within the currentCompany variable and include it into the dictionary. Also, we assign all the workers to that existing corporation and return it from the Func delegate.

After the course development, we will register it as a singleton company from the Startup class, if you are applying .NET5:

The above code is very simple to be familiar with, listed here Now we have added a databases relationship string to a variable known as myCS. Following Now we have assigned a variable sql a database insert query.

Working with the update and delete is really uncomplicated mainly because we already have all of the required awareness. So, Allow’s jump straight to your code.

The first thing we’ll do is produce a new ASPNetCoreDapper database. Once the databases development, you'll be able to navigate to our source code repository and find a script (Initial Script with Details.sql) you could execute to build two tables and populate them with knowledge:

Dapper is intended to be quick, efficient, and simple to operate, making it a superb choice for builders who want To optimize overall performance and efficiency.

We’ll demonstrate just the repository system wherever we implement transactions. All The remainder is pretty simple as we recurring the ways quite a few situations on this page:

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Needless to say, For those who have asked Dapper to return a selected style, similar to the Consumer inside the sample code shown right before, you'll have the requested item returned as an alternative to “Row”.

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Now, we have to outline the link string of our databases, to ensure that the appliance can connect with our Databases for performing CRUD operations. Open up the appsettings.json file from the Dapper.WebApi Job and add the following

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This method executes a query that doesn’t return any resultset. Its return value contains that range of rows influenced through the query. Should the executed essentially generates a resultset, that may be discarded.

Simplicity at its Core: Dapper.Internet focuses on simplicity and ease of use. It doesn't try and abstract away the databases, enabling you to jot down and enhance your SQL queries instantly.