MySQL: UPDATE not working

[HydroSan]

Having a bit of a problem getting UPDATE working. The project in
question is a simple MySQL VB.NET frontend, allowing Insertion,
Selection, and others.

Well, I've gotten Drop and Insert working, but to edit a table row,
I'd like to use Update.

I have the following code in a class:

Private Function SQL_CustomerUpd ate()
Dim MyConString As String = ("DRIVER={My SQL ODBC 3.51
Driver};SERVER= 192.168.0.15;DA TABASE=store;UI D=hal
lo;PASSWORD=zom gnone;OPTION=3; ")
Dim MyConnection As New
OdbcConnection( MyConString)
MyConnection.Op en()
Dim MyCommand As New OdbcCommand
MyCommand.Conne ction = MyConnection
MyCommand.Comma ndText = "UPDATE customer SET
First_Name='ZOM G666777' WHERE id=2"
MyCommand.Execu teNonQuery()
MyConnection.Cl ose()
'MyConnection.D ispose()
End Function

Keep in mind that the UPDATE syntax was much more complex, but I'm
trying to get it working at a very simple level so I can see if it
actually works or not.

It doesn't. :(

Can anyone help?

*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*

[Jos]

HydroSan wrote:

Having a bit of a problem getting UPDATE working. The project in
question is a simple MySQL VB.NET frontend, allowing Insertion,
Selection, and others.

Well, I've gotten Drop and Insert working, but to edit a table row,
I'd like to use Update.

I have the following code in a class:

Private Function SQL_CustomerUpd ate()
Dim MyConString As String = ("DRIVER={My SQL ODBC 3.51
Driver};SERVER= 192.168.0.15;DA TABASE=store;UI D=hal
lo;PASSWORD=zom gnone;OPTION=3; ")
Dim MyConnection As New
OdbcConnection( MyConString)
MyConnection.Op en()
Dim MyCommand As New OdbcCommand
MyCommand.Conne ction = MyConnection
MyCommand.Comma ndText = "UPDATE customer SET
First_Name='ZOM G666777' WHERE id=2"
MyCommand.Execu teNonQuery()
MyConnection.Cl ose()
'MyConnection.D ispose()
End Function

Keep in mind that the UPDATE syntax was much more complex, but I'm
trying to get it working at a very simple level so I can see if it
actually works or not.

It doesn't. :(

You didn't tell us what happens. Do you get an error message or not?

If there's no error message, check if there really is a record with ID=2.

It also helps if you wrap your code in a Try Catch exception block, like
this:

Private Function SQL_CustomerUpd ate()
Dim MyConString As String = ("DRIVER={My SQL ODBC 3.51
Driver};SERVER= 192.168.0.15;DA TABASE=store;UI D=hal
lo;PASSWORD=zom gnone;OPTION=3; ")
Dim MyConnection As New OdbcConnection( MyConString)
Try
MyConnection.Op en()
Dim MyCommand As New OdbcCommand
MyCommand.Conne ction = MyConnection
MyCommand.Comma ndText = "UPDATE customer SET
First_Name='ZOM G666777' WHERE id=2"
MyCommand.Execu teNonQuery()
Catch ex As Exception
Trace.Warn(ex.T oString())
Finally
MyConnection.Cl ose()
'MyConnection.D ispose()
End Function

--

Jos

[Jos]

Jos wrote:

Sorry, forgot the END TRY:

Private Function SQL_CustomerUpd ate()
Dim MyConString As String = ("DRIVER={My SQL ODBC 3.51
Driver};SERVER= 192.168.0.15;DA TABASE=store;UI D=hal
lo;PASSWORD=zom gnone;OPTION=3; ")
Dim MyConnection As New OdbcConnection( MyConString)
Try
MyConnection.Op en()
Dim MyCommand As New OdbcCommand
MyCommand.Conne ction = MyConnection
MyCommand.Comma ndText = "UPDATE customer SET
First_Name='ZOM G666777' WHERE id=2"
MyCommand.Execu teNonQuery()
Catch ex As Exception
Trace.Warn(ex.T oString())
Finally
MyConnection.Cl ose()
'MyConnection.D ispose()
End Try
End Function

--

Jos Branders

[LilBuh]

there s a .NET connector for mysql that doesn t use odbc sources in c#
binary release available too
100% dotnet is better :)
http://dev.mysql.com/downloads/connector/net/1.0.html

"Jos" <jn************ *@fastmail.fm> a écrit dans le message de news:
uO************* *@TK2MSFTNGP14. phx.gbl...

Jos wrote:

Sorry, forgot the END TRY:

Private Function SQL_CustomerUpd ate()
Dim MyConString As String = ("DRIVER={My SQL ODBC 3.51
Driver};SERVER= 192.168.0.15;DA TABASE=store;UI D=hal
lo;PASSWORD=zom gnone;OPTION=3; ")
Dim MyConnection As New OdbcConnection( MyConString)
Try
MyConnection.Op en()
Dim MyCommand As New OdbcCommand
MyCommand.Conne ction = MyConnection
MyCommand.Comma ndText = "UPDATE customer SET
First_Name='ZOM G666777' WHERE id=2"
MyCommand.Execu teNonQuery()
Catch ex As Exception
Trace.Warn(ex.T oString())
Finally
MyConnection.Cl ose()
'MyConnection.D ispose()
End Try
End Function

--

Jos Branders

[Jeff Dillon]

Do you get an error? If so, what is it?
"HydroSan" <hy***@sankyu u-dot-com.no-spam.invalid> wrote in message
news:41******** **@Usenet.com.. .

Having a bit of a problem getting UPDATE working. The project in
question is a simple MySQL VB.NET frontend, allowing Insertion,
Selection, and others.

Well, I've gotten Drop and Insert working, but to edit a table row,
I'd like to use Update.

I have the following code in a class:

Private Function SQL_CustomerUpd ate()
Dim MyConString As String = ("DRIVER={My SQL ODBC 3.51
Driver};SERVER= 192.168.0.15;DA TABASE=store;UI D=hal
lo;PASSWORD=zom gnone;OPTION=3; ")
Dim MyConnection As New
OdbcConnection( MyConString)
MyConnection.Op en()
Dim MyCommand As New OdbcCommand
MyCommand.Conne ction = MyConnection
MyCommand.Comma ndText = "UPDATE customer SET
First_Name='ZOM G666777' WHERE id=2"
MyCommand.Execu teNonQuery()
MyConnection.Cl ose()
'MyConnection.D ispose()
End Function

Keep in mind that the UPDATE syntax was much more complex, but I'm
trying to get it working at a very simple level so I can see if it
actually works or not.

It doesn't. :(

Can anyone help?

*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*

[HydroSan]

> Joswrote:
You didn't tell us what happens. Do you get an error message or not?

No error... and it appears that it has magically started working.

I hate when I ask a question then the problem solves itself.

Thanks for all your help. That errortrapping will come in handy one
day.

*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*