A Simple Key For dapper tutorial for beginners Unveiled
A Simple Key For dapper tutorial for beginners Unveiled
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Prior to using Dapper within our task, we must get ready a databases and create a new World wide web API undertaking. So, Permit’s begin with the database.
Performance: Dapper is amazingly rapidly and successful. It minimizes the overhead of mapping success to things, causing superior-performance database obtain. ️
We’ll show you how to use dynamic parameters in the subsequent example, where we’ll produce a new Enterprise entity inside our database.
Dynamic Parameters are In particular perfect for complex stored treatment, in the event you want take care of also a return benefit:
We’ll use consider-catch blocks in Every motion within our controller for the example’s sake. But to stay away from code repetition, we strongly propose examining our World wide Mistake Managing posting.
Due to the fact Dapper.Internet will not abstract away the databases or give automated migrations, you'll need to deal with your databases schema and manage schema adjustments manually.
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Within a preceding case in point, we used two SQL statements to return two results and then be a part of them collectively in an individual object. But generally, for these types of queries, we don’t want to put in writing two SQL statements.
QueryFirstOrDefault – we use this method to execute a query and map the 1st result or even a default price if the sequence includes no things
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The ExecuteAsync approach returns int Due to this fact, symbolizing the volume of affected rows within the database. So, if you need that details, You should utilize it by accepting the return worth from this process.
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This technique executes a query that doesn’t return any resultset. Its return value contains that range of rows influenced with the query. If the executed basically generates a resultset, that could be discarded.
Simplicity at its Core: Dapper.Web focuses on simplicity and simplicity of use. It does not make an effort to abstract away the database, making it possible for you to put in writing and enhance your SQL queries right.