C#将数据批量插入accesss中

   public static DataTable UpdateRows(string connectionString, string queryString, string tableName, DataSet ds)
        {
            using (OleDbConnection conn = new OleDbConnection(connectionString))
            {
                conn.Open();
                OleDbDataAdapter adapter = new OleDbDataAdapter(queryString, conn);
                OleDbCommandBuilder builder = new OleDbCommandBuilder(adapter);
                DataTable table1 = new DataTable();
                adapter.Fill(table1);

                for (int n= 0; n< ds.Tables[0].Rows.Count; n++)
                {
                    DataRow row = table1.NewRow();
                    for (int m = 0; m < ds.Tables[0].Columns.Count; m++)
                    {
                        row[m+1] = ds.Tables[0].Rows[n][m].ToString();

                    }
                    table1.Rows.Add(row);
                }
                adapter.UpdateCommand = builder.GetUpdateCommand();
                adapter.Update(table1);
                return table1;
            }
        }

因为我不知道datatable的列和行数所以就用了循环；

access中的批量更新语句，也就是在sqlserver内的语句是update t1 set t1.id = t2.id from t2 where t1.id1 = t2.id1；的功能在access内的语句：

UPDATE [t1] as a INNER JOIN [t2] as b ON a.电话 = b.号码 SET a.状态1 =b.状态