Executescalar stored procedure return value c#. C# fentonia.com SqlCommand 2019-04-08

Executescalar stored procedure return value c# Rating: 6,2/10 438 reviews

Getting a returned value from a stored procedure in C# method

executescalar stored procedure return value c#

The function returns the new Identity column value if a new row was inserted, 0 on failure. Perform conditional logic based upon whether the stored procedure succeeded or failed The following will show you how to: 1. Using a Return Value The final technique I want to talk about for returning scalar values from a stored procedure is using return values. Read, the NonQuery only does a 1. What's the logic error with this code? I return a direct value from the execution. Try to catch the exception type you really want not the general exception type.

Next

[Solved] How to get return value from SQL stored procedure?

executescalar stored procedure return value c#

SqlClient namespace for this example. Programmer-Analyst You can do it using output parameters. For more information about streaming, see. This is similar to compartmentalizing programmatic functionality into methods. Your brain is smarter than any micro-chip. For example, you might have a stored procedure that returns just the account balance for a particular customer, or one that returns the average age of all users in your database. ExecuteReader 'Now you can grab the output parameter's value.

Next

fentonia.com

executescalar stored procedure return value c#

You have mixed up the concept of the Return Value and Output variable. ToString ;}catch Exception ex {Response. Close End If End Try If command. ExecuteScalar, and receive the result. So it works with non action queries that use aggregate functions.

Next

[Solved] How to get return value from SQL stored procedure?

executescalar stored procedure return value c#

Now put your stored procedure in try. Using Output Parameters One way to retrieve scalar data in addition to a standard resultset from a stored procedure is to use one or more output parameters. The only thing to keep in mind is that you're results will contain only one row with only one field. Such queries are often called ad-hoc queries. After you call the stored procedure the output parameter's value is accessible through the Value property, as the following code illustrates: Dim myConnection as New SqlConnection connection string myConnection. StoredProcedure Dim p As New SqlClient. The solution was just to select the result at the end and return the query result in your functinon.

Next

Executescalar receives wrong value from storedprocedure

executescalar stored procedure return value c#

Can anyone tell me why?? They are actually mutually exclusive, which is an unfortunate choice of names in. InputOutput, and you just have to ExecuteNonQuery with your command. The return value of number of rows affected is of type integer and you can get it in an integer variable. Add retValParam 'Call the sproc. ToString Catch ex As ExceptionResponse.

Next

SqlCommand, ExecuteNonQuery, ExecuteScalar, Functions vs StoredProcedures

executescalar stored procedure return value c#

My code is as below: using System. It will not give access to result set generated by the statement. You have to call sqlcomm. If you want to sent a bit value back, you would have to use an output parameter instead. Net Dataset forums , creates a ProcAdapter class that implements the functions that will call the specific Stored Procedure or Scalar function.

Next

sql

executescalar stored procedure return value c#

Hi, I'm using the following stored procedure to try to return an identity column number, but it will not return a value. Yes good point and thanks for pointing that out , but the sqlcommand objects parameters list seems to be updated when the stored procedure runs as i get the desired outcome. Here is the example of ExecuteNonQuery method. The better is to use ExecuteScalar in this situation. If you try to delete certain rows over a specific data then you will get the no. Value End If Next cmd.

Next

getting return value from executenonquery

executescalar stored procedure return value c#

Net code you do not define it the same way, and try to get a result via ExecuteScalar, which is not supposed to perform the task you are trying to do. Value to the appropriate return type. ExecuteReader is also a connected way of data retrieval. Value; Note: Exception handling cut to keep the code short. This requires less code than using the method, and then performing the operations that you need to generate the single value using the data returned by a. Here is the example of ExecuteScalar method.

Next

C# fentonia.com SqlCommand

executescalar stored procedure return value c#

Stored procedures are not only more updateable than their ad-hoc counterpart, but also can be utilized by other applications. ReturnValue 'Finally, add the parameter to the Command's Parameters collection myCommand. In this case, the function defined is quite simple to use and is the most performant of the options available for this particular stored procedure and does not discard or obfuscate any of the data that would be returned. Implementing this means you can execute a stored procedure and if it fails , you can cancel any further processing in the Script. Then after ExecuteNonQuery , you can check the value of that parameter.

Next