By: Syed M Hussain in VB.net Tutorials on 2009-01-18
To connect to a MySQL database in VB.NET, you can use the MySQL Connector/NET data provider. Here's a sample code that demonstrates how to establish a connection and execute a simple query:
Imports MySql.Data.MySqlClient Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click ' Connection string Dim connString As String = "server=localhost;user id=root;password=your_password;database=your_database" ' Create a MySqlConnection object Using conn As New MySqlConnection(connString) ' Open the connection conn.Open() ' Create a MySqlCommand object Dim cmd As New MySqlCommand("SELECT * FROM your_table", conn) ' Execute the query and get a MySqlDataReader object Using reader As MySqlDataReader = cmd.ExecuteReader() ' Loop through the result set While reader.Read() ' Access the columns by name or index Dim id As Integer = reader.GetInt32(0) Dim name As String = reader.GetString(1) ' Do something with the data Console.WriteLine(id & " " & name) End While End Using End Using End Sub End Class
In this code, you need to replace the connection string with your own MySQL server credentials and database name. After that, you can create a
MySqlConnection object, open the connection, create a
MySqlCommand object with your query, execute the query, and loop through the result set using a
Note that you need to install the MySQL Connector/NET data provider in order to use it in your VB.NET application. You can download it from the official MySQL website.
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