In this stored procedure, we get client details using input and output parameters. Could not find stored procedure. using (var db = new YourConext ()) { var details = db.Database.SqlQuery<YourType> ("exec YourProc @p", new SqlParameter ("@p", YourValue)); } YourType: might be int or string or long or even a ComplexType. How to retrieve output parameter from stored procedure by ... Dapper - Stored Procedures | dapper Tutorial lacoder. Issue using Dapper with C# to call an Oracle stored proc with refcursor as out parameter, however refcursor as return value works . Parameters. Now create Repository folder and Add ComplaintRepo.cs class for database related operations, Now create method in ComplaintRepo.cs to get the output parameter value from stored procedure as in the following code snippet: C# queries related to "c# dapper execute stored procedure with parameters" dapper query stored procedure with output parameters; how to execute stored procedure with input parameters with dapper for sql Returning Output Parameters with Dapper for .NET Core For example: I had the following code: Best Practices for Using Dapper to Operate Oracle Stored ... This assumes the OUTPUT parameter in the // SQL is an INTEGER named @id. Table Valued Parameters. Using Parameters with Dapper Queries. This is because Oracle needed an Out parameter of type sys_refcursor defined so it had a place to store the data to return, and the existing tools in Dapper did not allow me to capture it. Parameters are represented in the SQL command by placeholders, and the values are passed to the command within the DbCommand object's Parameters collection. Dapper - Micro ORM for Oracle and Microsoft .NET | Vijay ... Issue using Dapper with C# to call an Oracle stored proc ... The Catalog Details for a procedure include the procedure type (query or function), class name, method or query name, the description, and the number of input and output parameters. This is ideal for a query on a single item eg: CREATE PROCEDURE getUser @UserID int, @UserName varchar(20) OUTPUT, @Email varchar(20) OUTPUT, @DateofBirth smalldatetime OUTPUT. Step 2: Create a SQL table with the following columns as shown in the below figure and name it an item. SELECT @UserName_UserName, @Email=Email, @DateofBirth=DateofBirth. The format of the placeholder is dependant on what the provider supports. Finally @GertArnold put me on the right direction, if you haven't read this post, please do it, will save you a lot of time Stored procedures with output parameters using SqlQuery in the DbContext API. Here's a definition for a table type and procedure utilizing it: . Stored Procedure (VII) Simulate using a single parameter array with a stored procedure by emulating the parameter. We can see how easy it is to call a stored procedure with Dapper in our project. The problem is that, Dapper can't invoke an Oracle stored procedure that use Oracle parameter data types and mixed directionality of said types in a way that knows how to handle them when the stored procedure concludes executing and it has to know what to do with the data it received. Allow modular programming, that is to say, it only needs to be created once, and the procedure can be called any time in the future program. Dynamic Parameters . This does not cause the function to return. Dapper .NET extends the . FROM [User] There are two ways to execute stored procedures with Dapper: with the CommandType as Text; or as StoredProcedure.. CommandType.Text. Once the parameters are initialized, you pass them to the OACommand. How do you work with multiple result sets with Dapper? Table Valued Parameters. The same can be used to execute multiple stored procedures. Executesqlraw Stored Procedure. The Catalog Details Stored Procedure Info display also provides an option to run the stored procedure. The one I prefer for SQL Server 2008+ is to use table-valued parameters.This is essentially SQL Server's solution to your problem--passing in a list of values to a stored procedure. If you have a stored procedure that accepts a Table Valued Parameter, you need to pass a DataTable which has the same structure as the table type in SQL Server has. var p = new DynamicParameters(); See the documentation for . <T> / Type (optional) The type of object to return; if the non-generic / non-Type API is used, a dynamic object is returned per row, simulating a property named per column name returned from . The support for stored procedure in EF Core is similar to the . Dapper works with SQL Server as well as so many other DB's and I have tried Oracle DB apart . Better Object Mapping with Dapper. Sign in to vote. [sp_AddMember] @id int, @Name Nvarchar(50) , @Contact nvarchar(50), @Address Nvarchar(50), @retVal int output AS BEGIN SET NOCOUNT ON; Insert into members([Name],Contact . If you use Dapper to perform Oracle's stored procedure operations, just this stored procedure needs to pass in the output value of a cursor type. I'm using Dapper with C# and SQL Server. I want to update the database using my stored procedure which either inserts the new song or updates it if the song already exists. It is one of the best solution in case of a database first approach as well as when there is already a database in place. How do constitute a parameter string for a stored procedure. Output parameters allow the stored procedure to pass a data value or a cursor variable back to the caller. That is sp_AddMember, sp_DeleteMember and sp_UpdateMember.. sp_AddMember. text/html 10/13/2005 1:21:24 PM Vivek Uppal 1. Dapper's DynamicParameters does not support cursor types. 2. Get my Udemy courses with a discount: https://www.felipe-gavilan.com/cursos?idioma=engIn this video we are going to learn how to use SQL Server Stored Proced. /***** Object: StoredProcedure [dbo]. I just added to my @intId the OUT on the exec call, there is no need to create a ReturnCode variable and call exec @ReturnCode = ... var returnCode = new SqlParameter("@ReturnCode", SqlDbType . A stored procedure is a material object. but it doesn't allow to specify if a parameter is an input or output parameter, and the data type is inferred from the parameter type itself. var sql = "exec [Sales by Year] @Beginning_Date, @Ending_Date"; var . To add the Dapper library to the project, right-click the IntegrationTests project and select Manage NuGet Packages…select the Browse tab and type "Dapper". Modified stored procedure You just pass an anonymous object as parameter values and Dapper does the value-to-type mapping itself. As with OUTPUT parameters, you must save the return code in a variable when the procedure is executed in order to use the return code value in the calling program. 1. @p: in case if the stored procedure has parameters and you can . Problem is my controller is not "seeing" the . "dapper execute stored procedure with output parameter" Code Answer c# dapper execute stored procedure with parameters csharp by Awful Anteater on Mar 05 2020 Comment Run the above script in sql it will generates the stored procedure to get the return value . If you have a stored procedure that accepts a Table Valued Parameter, you need to pass a DataTable which has the same structure as the table type in SQL Server has. This is my stored procedure: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo]. A stored procedure is a set of precompiled SQL statements 。. The last section is the assert one. This doesn't matter here, but generally RETURN would be used for status and errors with all quotation marks and commas in place . As shown below, you will find that the cursor type is not included in DbType. The example here is similar to the first one. Finally, we specify the commandType as CommandType.StoredProcedure. To retrieve the data for a stored procedure call, you can use the following. I have an stored procedure in SQL Server that inserts a person into my database. Stored procedures returning a result set can be run using Query; stored procedures which don't return a result set can be run using Execute - in both cases (using EXEC <procname>) as the SQL command (plus input parameters as necessary). We will still use the QueryMultiple method just like we did before, but instead of specifying inline SQL with two different statements, we will specify the name of the stored procedure and pass in an Id as a parameter. 89 Just searching the Test.cs file you could find this example. Dapper uses DynamicParameters class to define a collection of parameters. Note in the Execute that param is p.DynamicParameters. All DbCommand objects have a CommandType property. Tried to figure out a work around to resolve it.. // var output = default (List<T>); //This will return null in the case of an exception. I have a stored procedure written a few years ago that has output parameters and returns a result set. Now let's call stored procedure from C# code. IDbExecutor is the interface created by DapperWrapper that allows us to test Execute and Query. The rest of input seems to have been lost. In app.config/web.config add the following code in <configuration></configuration> section. using Dapper. This is because Oracle needed an Out parameter of type sys_refcursor defined so it had a place to store the data to return, and the existing tools in Dapper did not allow me to capture it. 3rd Step : Create a Stored Procedure with Input Parameter, Output Parameter and Return Parameter This is the main step of this example because here where we will create a stored procedure with input parameters to accept the values from the asp.net screen and output parameter which will be output with last inserted record ID. I have separate classes for input and output classes. [usp_CustomerAll_sel] @SomeOutput int OUT AS BEGIN SET NOCOUNT ON; SELECT * FROM [dbo]. Aug 01, 2018 07:14 PM. Dapper's DynamicParameters does not support cursor types. I have stored procedures with input and output parameters. Dapper is my preferred ORM for performance constraint applications. Step 6: Create Repository class. Most notably, I was unable to return data from a stored procedure in Oracle the same way he could with SQL Server. I think the answer depends on which features of stored procedures you need to use. There is a great discussion of this on StackOverflow that covers many approaches. I am calling this stored procedure from C# code using dapper. My stored_proc takes a "ZipCode", compares with a join, and gets a "MetroArea" to produce search results. Initially, when I imported it, the generated code was using ExecuteFunction () to execute the procedure. Here, we declare a variable called @LastName as input parameter, and three Output parameter. [Customer] SELECT @SomeOutput = @@rowcount + 25 --This number 25 is a variable from a complex query but . These are the top rated real world C# (CSharp) examples of Dapper.DynamicParameters.Add extracted from open source projects. Here I have explained with a simple example. In this case, I am adding an input parameter "Parm1", an output parameter "Output1" and a return value parameter "ReturnValue". @p: in case if the stored procedure has parameters and you can . We also pass in an object that has properties for each of the stored procedures arguments, in this case new {Model = model} maps the model variable to the stored procedure's @Model argument. My question is: how do I pass in the output parameter to the stored procedure while using dapper? Here's a definition for a table type and procedure utilizing it: Table Valued Parameters. The SqlClient provider supports named parameters, with the parameter name prefixed with an @ character. How to retrieve store procedure's output parameter by C#? !http://amrswalha.com IDapperParameters is the parameters interface I wrote. The above code snippet returns all the records from type T . 1. For Eg: public class Student. . Using this method, the ObjectParameter objects had the output parameter values. Bulk Merge . Dapper calls stored procedure. In the above stored procedure, @ClientID is the input parameter and others are the output parameters. This usually occurs when passing an output parameter to a stored procedure. Mapping Multiple RefCursors to Multiple Models Dapper .NET extends the . AS . Welcome to my blog! Net framework] - Advanced Application of dapper framework (2) 1.1. DECLARE @result int; EXECUTE @result = my . Bulk Update . (Coming soon) Retrieving Output Parameters Using Dapper (Coming soon) Do you have questions about . Instead of passing in the raw SQL statement, we simply pass in the name of the stored procedure. Next you execute the command by calling the ExecuteReader method to get a data reader. Thursday, October 13, 2005 12:53 PM. Don't specify the parameters in the command-text when using CommandType.StoredProcedure ; provide just the name - the parameters are passed by name already. The support for stored procedure in EF Core is similar to the . Almost stored procedures that you develop require parameters. . . Run the above script in sql it will generates the stored procedure to get the return value . i want to pass in from the application. I'm struggling with how to properly map output parameters back to an object using Dapper, when I create DynamicParamters from a template object.. var parameters = new DynamicParameters(entity); parameters.Add("@Id", dbType: DbType.Int32, direction: ParameterDirection.Output); parameters.Output(entity, x => x.Id); await conn.ExecuteAsync( "TodoItemInsert", entity, commandType: CommandType . I am calling this stored procedure from C# code using dapper. Output Parameters in SQL Stored Procedure Example 3. Answers. Step 6: Create Repository class. My question is: how do I pass in the output parameter to the stored procedure while using dapper? ParameterDirection.Output and ParameterDirection.InputOutput need to specified explicitly; to borrow an example from the test project (where the stored procedure is named #Issue261 ): [ Fact ] public void Issue261_Decimals () { var parameters = new DynamicParameters (); parameters. Just . Output parameters allow the stored procedure to pass a data value or a cursor variable back to the caller. Once I do that, the Data is stored correctly. Here I used a class DBConnector to connect with database. Add ( "c", dbType: DbType. In other words, PostgreSQL functions don't have output parameters that are distinct from the resultset they return - output parameters are just a syntax for describing that resultset . What you need is just another parameter, because you need two output parameters for the SPTwoRefCursor procedure. Then I catch it from code behind page of asp.net and displayed it to a label. Let's write a method to call the above stored-procedure. Below is the key method to call or execute stored procedures using Dapp.NET and DapperExtension. Other methods in the above code snippet are being configured to map your CRUD operations like: This above method will insert record to the type T to database with same name as of class name. Search With Dapper parameter not supplied. With Output Parameters, however, you can return as many output params as you want. C# (CSharp) Dapper DynamicParameters.Add - 30 examples found. Fastest Dapper Plus Extensions . The output is just '0x3C'. You can rate examples to help us improve the quality of examples. So, I want to create Dynamic Parameters using template objects instead of adding each property. I created a simple store procedure with output parameter. Please check out the resources below, and join my mailing list for future updates! Let us see how to use Output Parameters in a Stored procedure to return multiple outputs. A stored procedure can have many output parameters. As we said at the beginning of this article, Dapper supports parameterized queries, making it 100% SQL Injection safe. Hi, I am trying to run a stored_proc search of a table with a search parameter supplied through a textbox. but without using commandType, everything works fine. Stored Procedure (VII) Simulate using a single parameter array with a stored procedure by emulating the parameter. If you have a stored procedure that accepts a Table Valued Parameter, you need to pass a DataTable which has the same structure as the table type in SQL Server has. As shown below, you will find that the cursor type is not included in DbType. using (var db = new YourConext ()) { var details = db.Database.SqlQuery<YourType> ("exec YourProc @p", new SqlParameter ("@p", YourValue)); } YourType: might be int or string or long or even a ComplexType. However, when I try to call the TestingRefCursorsAsOutParam stored procedure with this code: . Lets look on the demo.. If you use Dapper to perform Oracle stored procedure operations, this stored procedure needs to pass in the output value of a cursor type. Step 3: Create a stored procedure and name it as dbo.usp_InsertItem. | ReidMelSam | LINK. Parameter Details; this cnn: The underlying database connection - the this denotes an extension method; the connection does not need to be open - if it is not open, it is opened and closed automatically. In addition, the output parameters can be in any valid data type e.g., integer, date, and varying character. It supports anonymous, dynamic, list, string, and table-valued parameters. Dynamic Parameters . The problem is that when I specify in the query that its an stored procedure I get . oracle Stored Procedure with Out parameter; For example, the assignment variable @result of data type int is used to store the return code from the procedure my_proc, such as: SQL. If you need to filter the properties on the object, use a projection: var result = connection.Execute("KBunnyGame_Players_InsertPlayer", new { player.Name, player.Score, player.FacebookId }, commandType: CommandType.StoredProcedure . Get a SkillShare Premium Account for 3 months, only $0.99:http://bit.ly/amrskillJoin our mailing list and get 2 free courses INSTANTLY! Now execute the above stored-procedure in SQL Query editor. Now create Repository folder and Add ComplaintRepo.cs class for database related operations, Now create method in ComplaintRepo.cs to get the output parameter value from stored procedure as in the following code snippet: PM> Install-Package Dapper. By default this is set to Text.If you want to execute a stored procedure in a SQL statement (text) you use the Execute (or Exec) statement:. Within the procedure, we are finding the Occupation, Education, and yearly Income of an employee whose last . Almost stored procedures that you develop require parameters. As you can observe in the image above, I also created three stored procedures. They are stated below: I have tested the store procedure. Accepted Answer. Each stored procedure will accept an XML parameter that is an array of CustomerModel models. To retrieve the data for a stored procedure call, you can use the following. Integrating Oracle Stored Procedures. However, there are times when you want to explicitly set the type of the parameter. Here's a definition for a table type and procedure utilizing it: Here I will explain how to get multiple results or records from stored procedure using dapper in c#, vb.net or access multiple results or objects from stored procedure in dapper using querymultiple method in c#, vb.net. I'm trying to use it in EntityFramework. Step 1: To begin install dapper in the project by running the following command in the nuget package manager console. Bulk Delete . [spInsertCustomer] . Add new member from members table USE [DBTest] GO ALTER PROCEDURE [dbo]. For example, the following stored procedure finds products by model year and returns the number of products via the @product_count output parameter: The input parameter in the stored procedure needs to be defined as varbinary(Max). Most notably, I was unable to return data from a stored procedure in Oracle the same way he could with SQL Server. It is less resource intensive to deal with a scalar parameter than a dataset via SELECT (or an OUTPUT clause etc) in the client And RETURN is limited to int datatype. Some questions, answered. How do you call a stored procedure with Dapper? Use an output parameter. My stored procedure has two output parameters: @success_added int = 0 and @success_updated int = 0. my sproc is as follows: using Dapper; using System.Data; using System.Data.SqlClient; public static int ExecuteOutputParam (this IDbConnection conn, string sql, object args) { // Stored procedures with output parameter require // dynamic params. but it doesn't allow to specify if a parameter is an input or output parameter, and the data type is inferred from the parameter type itself. Getting the result out from an Oracle Stored Procedure with the help of Dapper seemed very easy after just adding a custom implementation of Dapper.SqlMapper.IDynamicParameters which supports Oracle.DataAccess.Client.OracleDbType. Bulk Insert . Dapper with Stored Procedure in CSharp ()Dapper with Output Parameter & Return Parameter % SQL Injection safe s write a method to get a data value or a variable! Multiple result sets with Dapper.NET basics... < /a > Executesqlraw stored procedure and name it item! These are the top rated real world C # ( CSharp ) examples of extracted... Type is not included in DbType // SQL is an INTEGER named @ id the command by calling the method. S and I have tested the store procedure multiple result sets with Dapper basics! Ending_Date & quot ; the constraint applications with... dapper stored procedure output parameter /a > Executesqlraw stored procedure using?! Specify dapper stored procedure output parameter the output parameter the procedure snippet returns all the records from T. When Passing an output parameter to the caller ( Coming soon ) output. Need is Just another parameter, and varying character in app.config/web.config add the following code in & ;! S DynamicParameters does not support cursor types procedure: SET ANSI_NULLS ON GO procedure! Pass in the query that its an stored procedure, you will find that the cursor is. Use [ DBTest ] GO ALTER procedure [ dbo ] configuration & gt ; & lt ; configuration gt... Performance constraint applications parameters for the SPTwoRefCursor procedure command by calling the ExecuteReader method to call the TestingRefCursorsAsOutParam procedure. This example tried Oracle DB apart Dapper works with SQL Server as well as many! Username_Username, @ DateofBirth=DateofBirth by calling the ExecuteReader method to call the TestingRefCursorsAsOutParam stored procedure parameters. Configuration & gt ; & lt ; /configuration & gt ; & lt ; &!: StoredProcedure [ dbo ] a data value dapper stored procedure output parameter a cursor variable back to the OACommand to the! To explicitly SET the type of the placeholder is dependant ON what the provider supports parameters. These are the top rated real world C # ( CSharp ) examples of Dapper.DynamicParameters.Add extracted open. They are stated below: I have tested the dapper stored procedure output parameter procedure with Dapper.NET.... Of dapper stored procedure output parameter article, Dapper supports parameterized queries, making it 100 % SQL Injection.... Precompiled SQL statements 。 can be in any valid data type e.g. INTEGER!, the output parameter to the stored procedure has parameters and you can rate examples to help improve... Db apart I & # x27 ; s DynamicParameters does not support types! Of Dapper.DynamicParameters.Add extracted from open source projects code: do you have questions.! To use output parameters allow the stored procedure and name it an item, string, and three parameter! @ rowcount + 25 -- this number 25 is a variable called @ as. A table with the following code in & lt ; /configuration & gt section! Type of the parameter with this code: precompiled SQL statements 。 I try call! @ Beginning_Date, @ Ending_Date & quot ; the < /a > Executesqlraw procedure... With a search parameter supplied through a textbox my database ; s call stored procedure Info also!: how do you call a stored procedure from C # ( CSharp ) examples Dapper.DynamicParameters.Add... Data is stored correctly @ rowcount + 25 -- this number 25 is a SET of precompiled SQL statements.! Input seems to have been lost % SQL Injection safe the beginning of this article, Dapper parameterized! @ Email=Email, @ Ending_Date & quot ;, DbType: DbType,... The beginning of this article, Dapper supports parameterized queries, making it 100 % Injection!, string, and three output parameter to the stored procedure needs to be as! & dapper stored procedure output parameter ; /configuration & gt ; & lt ; configuration & gt ; section top rated real C! Resultset stored procedure the TestingRefCursorsAsOutParam stored procedure the parameter name prefixed with an @ character I! The input parameter in the // SQL is an INTEGER named @ id well as so many DB. Income of an employee whose last exec [ Sales by Year ] SomeOutput... ; execute @ result int ; execute @ result int ; execute @ result int ; @... Now let & # x27 ; m trying to use output parameters can be in any valid type. In & lt ; /configuration & gt ; section snippet returns all the records from type T times... Varying character SET ANSI_NULLS ON GO ALTER procedure [ dbo ] CSharp ) of!, we are finding the Occupation, Education, and join my mailing list for future!. Assumes the output parameter to the procedure: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER [... The OACommand problem is my controller is not & quot ; C & quot ; seeing & ;. Sql Server as well as so many other DB & # x27 ; m trying to run a stored_proc of. Queries, making it 100 % SQL Injection safe all the records from type T controller is &! How easy it is to call the above code snippet returns all the records from type.... Income of an employee whose last and three output parameter to the OACommand the below figure and it... Method, the generated code was using ExecuteFunction ( ) to execute the procedure, we get details... An option to run a stored_proc search of a table with a search parameter supplied a... Stated below: I have tried Oracle DB apart SET ANSI_NULLS ON GO ALTER procedure [ ]! Create a SQL table with the following code in & lt ; /configuration & gt ; section SELECT * [! Add new member from members table use [ DBTest ] GO ALTER procedure [ dbo ] a.... ; /configuration & gt ; section is sp_AddMember, sp_DeleteMember and sp_UpdateMember.. sp_AddMember to! To connect with database: in case if the stored procedure while using (! By calling the ExecuteReader method to call a stored procedure with Dapper.NET basics... < /a > table parameters... Add ( & quot ; ; var let us see how to use it in EntityFramework a SQL table the. When I imported it, the output parameter to a label value a! It an item that its an stored procedure has parameters and you can the. Below: I have an stored procedure is a SET of precompiled SQL statements 。,! Precompiled SQL statements 。 ] @ Beginning_Date, @ Email=Email, @ Ending_Date & quot ;, DbType DbType...: DbType DynamicParameters does not support cursor types world C # code using input and output using! Dbconnector to connect with database I have tested the store procedure procedure [ dbo ] Dynamic,,... That is sp_AddMember, sp_DeleteMember and sp_UpdateMember.. sp_AddMember I have an stored procedure to pass a value! Go ALTER procedure [ dbo ] from type T query that its an stored procedure quality of examples records! ; s call stored procedure and name it as dbo.usp_InsertItem & quot ; the the! Each property Coming soon ) do you work with multiple result sets with Dapper.NET ) Retrieving parameters! This usually occurs when Passing an output parameter use [ dapper stored procedure output parameter ] GO ALTER procedure [ ]! Two output dapper stored procedure output parameter the provider supports named parameters, with the parameter and output parameters can be in valid... Trying to use output parameters in a stored procedure to return multiple outputs ) examples of extracted. The dapper stored procedure output parameter stored procedure with Dapper in our project question is: do! Well as so many other DB & # x27 ; s call stored procedure with this:... = @ @ rowcount + 25 -- this number 25 is a SET of SQL... Be in any valid data type e.g., INTEGER, date, and character! Class to define a collection of parameters Object: StoredProcedure [ dbo ] OracleRefCursor < /a to. This assumes the output parameter to a label s write a method to call a stored procedure name! This stored procedure I get by calling the ExecuteReader method to call the TestingRefCursorsAsOutParam stored in. Employee whose last dapper stored procedure output parameter 86QCLY ] < /a > Integrating Oracle stored.... Not & quot ;, DbType: DbType ) to execute the procedure get a data value or cursor! Data for a stored procedure with Dapper in & lt ; /configuration gt. Db & # x27 ; s call stored procedure while using Dapper... < /a to. @ @ rowcount + 25 -- this number 25 is a variable from a complex query.... Return multiple outputs from code behind page of asp.net and displayed it to a label a... Sqlclient provider supports named parameters, with the parameter resources below, you pass them to the stored procedure Dapper... @ id if the stored procedure with output parameter to the Dapper in our.! Assumes the output parameters can be in any valid data type e.g., INTEGER, date and! That its an stored procedure to pass a data value or a cursor variable back the. With SQL dapper stored procedure output parameter that inserts a person into my database Income of an employee last! Sales by Year ] @ SomeOutput int OUT as BEGIN SET NOCOUNT ON ; SELECT * from dbo. Usually occurs when Passing an output parameter in the query that its an stored to... Run the stored procedure, we declare a variable called @ LastName as input parameter, and my. Dbtype: DbType parameter to the caller value or a cursor variable back to the caller > [ ORM... Result = my quot ; C & quot ; C & quot ;,:! You work with multiple result sets with Dapper.NET work with multiple result sets with Dapper or a variable! Collection of parameters of the placeholder is dependant ON what the provider supports named parameters, with following! Sql = & quot ; seeing & quot ; C & quot ; &...