5 Simple Techniques For dapper tutorial for beginners

5 Simple Techniques For dapper tutorial for beginners

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The first thing we are going to do is to make a new Dto folder, and inside of it, a brand new CompanyForCreationDto class that we are going to use to the Submit ask for:

Using the QueryMultipleAsync() method, we can easily execute numerous SQL statements and return a number of brings about only one query. Allow’s see how to do that with an case in point.

QueryMultiple – an extension approach that executes many queries inside the identical command and maps results

The moment Dapper package is set up, we are all set to complete databases functions in our .NET application. Inside the underneath code we're inserting a file into a databases desk with Dapper.

Execute – an extension strategy that we use to execute a command a single or numerous periods and return the amount of affected rows

Once we get numerous final results Within the multi variable, we will extract the two benefits (organization and workers per that company) by utilizing the ReadSignleOrDefaultAsync and ReadAsync strategies. The initial technique returns a single final result, when the 2nd returns a collection.

We’ll tell you about just the repository process where by we put into practice transactions. All the rest is pretty very simple as we repeated the techniques a number of periods in this post:

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Needless to say, Should you have questioned Dapper to return a particular kind, similar to the User during the sample code shown ahead of, you should have the asked for item returned instead of “Row”.

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Executes a query and maps The end result to an index of dynamic objects or, if specified, to a list of strongly typed objects:

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This strategies executes a question that return a resultset made from accurately dapper tutorial for beginners 1 row and one particular column. Much like the good old IDBCommand.ExecuteScalar.

This method executes a question that doesn’t return any resultset. Its return price includes that quantity of rows affected via the question. In the event the executed really generates a resultset, which will be discarded.

Simplicity: Dapper provides a straightforward and intuitive API for executing queries and mapping benefits. It lets you compose SQL queries directly, supplying you with total Manage around your databases interactions.