Dapper is a simple object mapper for .NET. It is available as Nuget Package. It performs well because it doesn’t translate queries that we write in .NET to SQL. It is SQL-Injection safe because we can use parameterized queries. It supports multiple database providers. It extends ADO.NET’s IDbConnection and provides useful extension methods to query our database. It supports both synchronous and asynchronous methods.

Execute : Use this to execute a command one or numerous times and return the number of changed rows.

Query : This can execute the query and map the result.

QueryFirst : This executes the query and maps the first result.

QueryFirstOrDefault : This executes the query and maps the first result, or a default value if there is no result.

QuerySingle : This executes the query and maps the result. It throws an exception if there is no record.

QuerySingleOrDefault : This executes the query and maps the result. If there is no record, it will default a value. It will throw an exception if there is more than one element in the result.

QueryMultiple : This executes multiple queries within the same command and maps the results.

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