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我正在使用winform c#和phpmyadmin(數據庫)。我有2個不同的數據庫(db1和db2)。使用c中另一個數據庫的數據填充數據庫#
我想獲取的DB1表1的一列 存儲這些信息在DB2 的表2這樣,如果有DB1中的列的任何修改,在DB2應automacally更新的數據。
這是我所使用的邏輯,但它不工作:
using MySql.Data.MySqlClient;
namespace GNMS
{
public partial class doublecoonection : Form
{
DataSet ds;
MySqlDataAdapter da1;
MySqlDataAdapter da2;
MySqlConnection connec1; //for 1st database
MySqlConnection connec2;//for the 2nd one
public doublecoonection()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string str_conn = "server=localhost;username=root;password=****;port=3306";
string query1 = "select id,city from enugro.city;"; //query1 for 1st DB
connec1 = new MySqlConnection(str_conn);
try
{
connec1.Open();
da1 = new MySqlDataAdapter(query1, connec1);// this is how i stored results of first data in object da
connec1.Close();
connec2 = new MySqlConnection(str_conn); // open second connection
connec2.Open();
string query2 = "insert into enugro_africa.reports(id,city) value(da1);";
da2 = new MySqlDataAdapter(query2, connec2);//query for 2nd DB
ds = new DataSet();//store in the temporarily
da2.Fill(ds); //fill the dataset "ds"
dataGridView1.DataSource = ds;//display the result in a datagridview
}
catch(Exception ex){
MessageBox.Show(ex.Message);
}
}
}
}
請ü可以幫助我?
聽說過的[複製](http://stackoverflow.com/questions/3402794/mysql-replication)?如果沒有_please_在提出已經回答的這樣的問題之前做一些研究。 – kayess