mysql - fill a database using data of another database in c# -

i'am working on winform c# , phpmyadmin (database). have 2 differents databases(db1 , db2).

i want fetch data of 1 column of table1 in db1 , store these information in table2 of db2 such if there modifications in column of db1, db2 should automacally updated.

this logic used it's not working:

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 2nd 1         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 enugro.city;"; //query1 1st db         connec1 = new mysqlconnection(str_conn);         try         {             connec1.open();             da1 = new mysqldataadapter(query1, connec1);// how stored results of first data in object da              connec1.close();              connec2 = new mysqlconnection(str_conn); // open second connection             connec2.open();             string query2 = "insert enugro_africa.reports(id,city) value(da1);";             da2 = new mysqldataadapter(query2, connec2);//query 2nd db             ds = new dataset();//store in temporarily              da2.fill(ds); //fill dataset "ds"             datagridview1.datasource = ds;//display result in datagridview           }         catch(exception ex){             messagebox.show(ex.message);         }     } } 

}

please u me?.

you using disconnected ado.net architecture...that means not have open , close connection...data adapter you. remove code , try again

moreover, query 2 seems incorrect. have call fill of first data adapter fill data set , iterate through data set , call second query pass value want pass.

alternatively, can pass whole data xml stored procedure can bulk insert