C#与Oracle连接


        OracleConnection conn = new OracleConnection(@ConfigurationSettings.AppSettings["Properties.Settings.Oracle_conn"]);
          string cmd_users = "select * from users ";
          OracleDataAdapter oda_users= new OracleDataAdapter(cmd_users, conn);
          DataSet ds_users = new DataSet();
          DataTable dt_users = new DataTable();
          oda_users.Fill(ds_users, "dt_users");
          DataGridView5.DataSource = ds_users;
          DataGridView5.DataMember = "dt_users";


以上是取一个表users,如果还有多个表table1,table2,table3
偶不明白的是：
1.怎样将它都取出来，并插到ds中？(上面只取了一个，cmd_users部分需要每个重写一次？)
2.不同的datagridview如何绑定自己的ds.table(x)?

请高手！

[ 本帖最后由 初级白痴 于 2009-9-9 10:08 编辑 ]

这样理解对吗？
数据库中的数据先交给DA
DA.Fill(DS,DT)//这句话不太理解，多个表是不是就这样写



DA.Fill(DS,DT1);
DA.Fill(DS,DT2);
DA.Fill(DS,DT3);
...............

请高手帮我看看这样写对不对？谢谢！

Datagridview1取users表
Datagridview2取department表

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
         OracleConnection conn = new OracleConnection(@ConfigurationSettings.AppSettings["Properties.Settings.Oracle_conn"]);
          string cmd_modality = "select * from users";
          string cmd_department = "select * from department";
  
          OracleDataAdapter oda_users= new OracleDataAdapter(cmd_users, conn);
          OracleDataAdapter oda_department = new OracleDataAdapter(cmd_department, conn);
 
          DataSet ds = new DataSet();
 
          DataTable dt_users= new DataTable();
          DataTable dt_department = new DataTable();
 
          DataTable dt_users= ds_reg.Tables.Add("dt_users");
          DataTable dt_department = ds_reg.Tables.Add("dt_department");
 
          oda_modality.Fill(ds, "dt_users");
          oda_modality.Fill(ds, "dt_derpartment");
           
          DataGridView1.DataSource = ds;
          DataGridView1.DataMember = "dt_users";

          DataGridView2.DataSource = ds;  
          DataGridView2.DataMember = "dt_department";