error on ExecuteNoQuery()

i'am trying to update a row in a table using :

开发者_如何学编程command.ExecuteNoQuery()

it's not giving me an error but it's not updating the row

This is my code :

Dim req As String = "Update Table Set Id= 5"
Dim cmd As New OleDb.OleDbCommand(req, connect())
cmd.ExecuteNonQuery()
disconnect()

thanks

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Make sure that ID isn't an IDENTITY column.

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the problem is that the query was too slow with MS Access.

Now it's working fine MS SQL Server.