Question

.Net get Return Value from SQL stored procedure

Asked by: yo_daz_uk

All,

I have a stored procedure that either Inserts or updates a table based on whether it exists or not.  I call the stored procedure from a vb.net program see code below.

What i want to do now is add a return value in the stored procedure to tell me whether it has inserted or updated, and capture that return value in the .net code so i can do some processing on it.

I was thinking adding after the insert statement in the stored procedure
RETURN (0)

and RETURN(99) for the Update procedure.

All this code compiles however what i want to be able to do is pick up the return code in the .net program.  I do not know how to do it.  So my question is how do i do this?

I'm thinking something like

dim result as integer = cmd.executeNonQuery

However this does not work, i'm guessing because it is executing a none query.

Any help is gratefully appreciated.

Thanks,

Daz

Dim conn As New SqlConnection(ConnectionString)
 
            Dim cmd As New SqlCommand("dbo.FGSRetreadTyre")
            cmd.Parameters.Add(New SqlParameter("@DocketNumber", DocketNumber))
            cmd.CommandType = CommandType.StoredProcedure
            conn.Open()
            cmd.Connection = conn
            cmd.ExecuteNonQuery()
 
            MsgBox("Completed")

                                  
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Asked On
2009-03-02 at 14:53:48ID24191850
Tags

VB.Net

,

SQL Stored Procedure

Topic

Microsoft Visual Basic.Net

Participating Experts
3
Points
125
Comments
4

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Answers

 

by: reb73Posted on 2009-03-02 at 15:03:01ID: 23779436

You are better off using an output parameter, instead of messing with return values.

Just define an extra parameter in the stored procedure, flagging this as an output with the keyword OUTPUT after the parameter and populate this with different values - e.g. 1 for insert, 0 for update - and then check the value of this parameter in your vb.net code..

 

by: tiagosalgadoPosted on 2009-03-02 at 15:03:20ID: 23779438

ExecuteNonQuery() method will return you number of rows inserted, updated or removed.

To retrieve some value, use a SELECT 'value you want' and you ExecuteScalar() to read it.

 

by: appariPosted on 2009-03-02 at 16:27:51ID: 23779929

try like this

Dim conn As New SqlConnection(ConnectionString)
 
            Dim cmd As New SqlCommand("dbo.FGSRetreadTyre")
            cmd.Parameters.Add(New SqlParameter("@DocketNumber", DocketNumber))

            Dim retPara As SqlClient.SqlParameter = cmd.Parameters.Add("@retVal", SqlDbType.Int)
            retPara.Direction = ParameterDirection.ReturnValue

            cmd.CommandType = CommandType.StoredProcedure
            conn.Open()
            cmd.Connection = conn
            cmd.ExecuteNonQuery()

            msgbox retPara.value
            MsgBox("Completed")

 

by: yo_daz_ukPosted on 2009-03-03 at 06:28:01ID: 31553134

I used Appari solution.

all you have to do is add the return values in as i stated and change the code to add rrhe retPara as appari showed and you can get the return values.

Thanks a lot for your help.

20120131-EE-VQP-002

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