原目的：從一個老的SQLite裡讀出資料，存到DataTable裡，然後儲存到一個新的SQLite資料庫中。

需要引用System.Data.SQLite.dll

try
            {
                SQLiteConnection Conn = new SQLiteConnection();
                DataTable dt = new DataTable();
                Conn.ConnectionString = <span style="font-family: Arial, Helvetica, sans-serif;">"Data Source=.\\OldData.db";</span>
                Conn.Open();  //開啟舊資料庫

                string sql = "SELECT tbl_name, sql FROM sqlite_master WHERE type='table' ORDER BY name";
                SQLiteDataAdapter oldadapter = new SQLiteDataAdapter(sql, Conn);
                oldadapter.Fill(dt);//獲得舊資料庫裡所有表的名字和CREATE命令

                string output = "NewData.db";
                SQLiteConnection.CreateFile(output);//建立新的資料庫
                SQLiteConnection conn = new SQLiteConnection();
                SQLiteConnectionStringBuilder connstr = new SQLiteConnectionStringBuilder();
                SQLiteDataAdapter adapter;
                connstr.DataSource = output;
                conn.ConnectionString = connstr.ToString();
                conn.Open(); //開啟新的資料庫
                Console.WriteLine("Created and opened a new database.");

                DataTable single;
                String tbl_name;
                String sqlstring;
                for (int k = 0; k < dt.Rows.Count; k++)
                {
                    tbl_name = dt.Rows[k][0].ToString();
                    sqlstring = dt.Rows[k][1].ToString();//CREATE TABLE命令

                    SQLiteCommand cmd = new SQLiteCommand();;
                    cmd.CommandText = sqlstring;
                    cmd.Connection = conn;
                    cmd.ExecuteNonQuery(); //建立新表

                    sql = string.Format("SELECT * FROM {0}", tbl_name);// "select * from " + tbl_name;
                    oldadapter = new SQLiteDataAdapter(sql, Conn);
                    single = new DataTable();
                    oldadapter.AcceptChangesDuringFill = false; //重要
                    oldadapter.Fill(single); //獲得老表裡的資料<pre name="code" class="csharp">                
 

//...................對資料進行處理
cmd = conn.CreateCommand(); cmd.CommandText = sql; adapter = new SQLiteDataAdapter(cmd); SQLiteCommandBuilder builder = new SQLiteCommandBuilder(adapter); adapter.Update(single); //將DataTable裡的資料全部匯入新表 Console.WriteLine("Successfully inserted table: " + tbl_name); } conn.Close(); Conn.Close(); Console.WriteLine("Finished."); } catch (Exception ex) { Console.WriteLine("Something is wrong."); }
程式執行的時候貌似依然是一條一條的插入，時間上並不效率。一個5M的資料庫（不到100個表）跑了將近5個小時。而寫到文字檔案的話不到一秒鐘。。

插入表之前需要先建立表。如果不能事先獲得CREATE命令的話，自行建立的話可能會比較麻煩。