Question

Problem with passing parameter to MySQL Stored Procedure

Asked by: arossco

I am using VWD 2005 Express and MySQL 5.1.34

I have tried some very simple stored procedures to test them in MySQL.

Stored Procedures with no parameters are OK, but when I try to execute one with a parameter it is throwing an exceptions as follows :

ex      {"ERROR [HY000] [MySQL][ODBC 3.51 Driver][mysqld-5.1.34]
Incorrect number of arguments for PROCEDURE vehiclereg.getRegistrationDetails;
expected 1, got 0"}      System.Exception

I am using ODBC 3.51 - I understand that MySQL Connector Net 5.2.6 does not work with VWD Express.

The SP works correctly with a parameter when I use the console in MySQL :
mysql> CALL getRegistrationDetails('ABC');

Any help gratefully received as this is driving me crazy !

Ross

VB Code
 
 
        Dim myPar As OdbcParameter
        Dim cmd As New OdbcCommand()
 
        cmd.CommandType = CommandType.StoredProcedure
        cmd.CommandText = "{ CALL getRegistrationDetails}"
        cmd.Connection = con
 
        myPar = cmd.CreateParameter()
        myPar.ParameterName = "passRegLetters"
        myPar.Value = "ABC"
        myPar.Direction = ParameterDirection.Input
 
        cmd.Parameters.Add(myPar)
 
        Try
            Dim rdr As OdbcDataReader = cmd.ExecuteReader()
            Return rdr
        Catch ex As Exception
            Console.WriteLine("Error: " & ex.ToString())
        End Try
 
 
MySQL Stored Procedure
 
 
select * from regLetters 
	where letters = passRegLetters

                                  
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Asked On
2009-05-14 at 03:08:55ID24407837
Tags

MySQL Stored Procedure VB .NET Visual Web Developer 2005 Express

Topics

MySQL Server

,

VB Database Programming

,

Microsoft Visual Studio Express

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Answers

 

by: DhaestPosted on 2009-05-14 at 04:01:44ID: 24383504

Seen somewhere on another forum, I don't know if it can help you.
There pass this as parameter
cmd.Parameters.Add("?channelID", "2").Direction = ParameterDirection.Input

So can you try one of the following:
1. myPar = cmd.CreateParameter()
        myPar.ParameterName = "?passRegLetters"
        myPar.Value = "ABC"
        myPar.Direction = ParameterDirection.Input
Or
cmd.Parameters.Add("?passRegLetters","ABC")

 

by: arosscoPosted on 2009-05-14 at 04:35:39ID: 24383693

Thanks - I've tried this and I get exactly the same result.  !

Ross

 

by: arosscoPosted on 2009-05-14 at 04:37:15ID: 24383703

.. To clarify, I still get :

ex      {"ERROR [HY000] [MySQL][ODBC 3.51 Driver][mysqld-5.1.34]
Incorrect number of arguments for PROCEDURE vehiclereg.getRegistrationDetails;
expected 1, got 0"}      System.Exception

Ross

 

by: arosscoPosted on 2009-05-14 at 06:00:15ID: 24384409

Delighted to say that I have solved the problem !

I said in my initial post "I am using ODBC 3.51 - I understand that MySQL Connector Net 5.2.6 does not work with VWD Express" - I guess I was misinformed !

I retried the MySQL Connector which now works - I didn't realise before that I should have been using
MySqlConnection, MySqlCommand etc instead of SqlConnection and SqlCommand etc.

 Ross

20120131-EE-VQP-002

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