The Greatest Guide To dapper tutorial for beginners

The Greatest Guide To dapper tutorial for beginners

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Here’s a summary Anything you can be expecting to generally be returned by Each and every technique just in case your query return no rows, one particular row or multiple rows:

Obtain the full implementation and learn how everything performs under the hood. Remember to star my GitHub repo if you find it helpful!

Now, we're going to take care of a POST request inside our API and use the ExecuteAsync strategy to produce a new organization entity from the database.

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QuerySingleOrDefault – executes a question and maps the result or simply a default worth if the sequence is vacant. It throws an exception if there is multiple element from the sequence

Right here, we develop a variable which contains a method title and a dynamic parameter object with an individual parameter inside of. Simply because our stored technique returns a worth, we use the QueryFirstOrDefaultAsync technique to execute it.

You may have total Manage around how parameters are sent into the database, as you could see from what get executed:

As you are able to see, our query variable consists of two Pick statements. The primary will return one dapper tutorial for beginners corporation, and the next just one will return all the staff of that corporation. After that, we produce a connection and after that use that connection to call the QueryMultipleAsync method.

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At this time, many of the properties from the organization class possess the same names given that the columns inside the businesses desk. But what would transpire if These don’t match?

This method executes a question that doesn’t return any resultset. Its return price has that amount of rows impacted with the query. In the event the executed actually generates a resultset, that may be discarded.

Simplicity: Dapper offers a straightforward and intuitive API for executing queries and mapping final results. It lets you create SQL queries instantly, giving you whole Management more than your databases interactions.