In this particular area, we're going to make a easy repository sample. We’ll ensure it is straightforward due to the fact this short article is about Dapper.
Listed here’s a summary what you can be expecting to become returned by Each individual approach in the event that your query return no rows, 1 row or various rows:
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Now, we are going to cope with a Submit ask for inside our API and use the ExecuteAsync system to create a new company entity from the database.
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QuerySingleOrDefault – executes a question and maps the result or possibly a default benefit In case the sequence is empty. It throws an exception if there is multiple factor in the sequence
Executing Uncooked SQL Queries is often quick. dapper tutorial for beginners Growth of jobs are carried out considerably faster when using Dapper considering that it is vitally easy to find out and does not have added capabilities like EF Main which calls for a while to be aware of.
You might have complete Command around how parameters are sent to the database, as you can see from what get executed:
As you may see, our question variable has two Decide on statements. The 1st will return one enterprise, and the 2nd just one will return all the staff of that firm. After that, we produce a relationship then use that link to get in touch with the QueryMultipleAsync approach.
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Lightweight: Dapper is a lightweight library with minimal dependencies. It doesn’t impose any complicated configuration or set up, rendering it very easy to combine into your tasks.
Dapper.Internet expects developers to possess a strong idea of SQL plus the underlying databases construction
var sql = @"find * from cars and trucks where Id = @id1; choose * from automobiles in which Id = @id2; pick * from vehicles exactly where Id = @id3";
What is your expertise with Dapper? Is it your goto Device in your assignments or would you alternatively use Entity Framework or something else?
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