I'm creating a program with database and it almost done. The only one thing that left is the backup and restore of database. I don't know how to do this.
I have written a new app in VB.net as a front end to a mySQL database held on a PC on the LAN running Windows XP. This worked fine for a while. The PC running the mySQL server started locking up (XP errors, not mySQL errors according to the event logs), so I decided to have a go installing Ubuntu to run the mySQL server to see if that was more stable.Ubuntu 11.10 is now installed, and mysql server is also running. I have imported the old sql database files and the mySQL workbench shows all tables are imported successfully.
HOWEVER, I cannot get my VB application to connect to the database now it resides on Ubuntu - just returns "Unable to connect to any of the specified MySQL hosts" when i try to open a connection. I am fairly new to Ubuntu and MySQL, and don't know if the fault lies with the O/S (a firewall config problem perhaps?) or if I need to do something different with mySQL.I can ping the Ubuntu pc from the client pc and vice versa.I have used ufw to open port 3306 on the server The ufw logs do not show any errors when I try to connect from the client pc, so I don't think it's a firewall problem (but could be wrong). I thought it may be something to do with the usernames I use in the connection string, but when I change these (deliberately use the wrong password for example) I get the same message, rather than a username/password error Is anyone else using a client PC running Windows (W7 or XP) to connect to a mySQL database running on a Ubuntu server?
I am using MySQL 5.0 as back end with VB.NET as front end(Windows Applicaions). I want to take back up my database. I found one command through net as below.
So I have a class that I use to filter the results of a datagridview in vb.net. And one of the things I want this class to do, is keep the column order, width, and visibility.
So what I do, is when my search class is instantiated, i create a copy of the columns in a hashtable, for later referencing.
Private dgv As DataGridView Private dataSet As DataSet Private bindingSource As New BindingSource
I have got a MySQL database that has got some dates stored in a Date format (YYYY-MM-DD) however when i try and import the data i get an error saying: "Unable to convert MySQL date/time value to System.DateTime"
I have determined thanks to the last q & a that there is something wrong with my "save to db" code as well as my "retrieve to picture" code. Even If I manually save the pic in the db it stil wont retreive. This is code i patched together from 3 or 4 examples around the net.
Dim filename As String = txtName.Text + ".jpg" Dim FileSize As UInt32 Dim ImageStream As System.IO.MemoryStream[code]......
I am trying to make a login system mysql try to connect to a mysql database.
Here is my code:
Imports MySql.Data.MySqlClient Public Class LoginForm1 Dim MySqlConnection As MySqlConnection Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click MySqlConnection = New MySqlConnection()
I want to backup and restore the database by using vb.net.I have a problem here..This dialogue box appear.
" [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot open backup device 'C:Documents and SettingsSMy Documentssales.Bak'. Operating system error 5(Access is denied.). [Microsoft][ODBC SQL Server Driver][SQL Server]BACKUP DATABASE is terminating abnormally. "
I'm working on a Warehouse Item locator. I use an Access database for all the information and I made a backup so after all the change are made, I can keep a copy of the database in case something happen.
i installed visual studio ( full installation)then i got xampp from their site i have mysql and apache running i downloaded the connector from mysql site and i created a simple project to check if i can connect to mysql or not i have made this code so far
Imports System.Data.SqlClient Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim Connection As String = "Data source=localhost;user=root;password=;Initial Catalog=test;Integrated Security=true;"
[code]....
im having trouble with an exception though it says {"A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"}
how can i get rid of this, is it because i installed mysql 2005 with visual studio 2008? and maybe it runs with xampp's mysql and creates these problems?
I want to Backup my Database to a location and restore it afterwards. The problem is , i want to keep my program open. I seem to have a problem with this, the connection stays open. How can i do this , close connection and open it again without data loss?
Im getting this: "Exclusive access could not be obtained because the database is in use.RESTORE DATABASE is terminating abnormally."
First the message told me i must connect to master db to execute the restore but i change it and i got the message above.The parametrized sql statement im using is :
I've created an application that inserts data into an MySQL database, I have used xampp on the local machine to make sure that the database worked with the application and that everything worked correctly
now when editing the connection string so that I can connect to a remote machine on my LAN I keep getting an error saying "Unable to connect to any of the specified MySql Hosts"
I've checked all the credentials in the connection strings I.E username, password, database name and the machine address.[code]...
Unable to connect to any of the specified MySQL hosts. My code is as follows:
[Code]....
I have checked and double checked username, password, database name, and server. I am new to using MySQL etc., but I pulled the information directly from my phpMyAdmin.
I am using VB.net 2003. I am working on a stand alone windows program that stores data in an Access database via ADO.net via MS jet 4.0 OLEDb. I have progressed to the point that I would now like to provide the end user the oportunity to back-up the data they have stored and re-install if they choose. I am envisioning a menu item for "maintenance" with sub-items for "back-up" and "restore"
I can have mysql database. but i have not mysql. how to connect this database vb.net 2005. but i have mysql-connector-net . I want to mysql-connector-net use to connect this database. database path(C:Documents and SettingsAdminMy DocumentsVB.NETStock delnaSTC.sql)
i am using the following code snippet to backup/restore database Backup works fine but when i try to restore i get this error "RESTORE cannot process database 'LIC' because it is in use by this session. It is recommended that the master database be used when performing this operation. RESTORE DATABASE is terminating abnormally."