本文章以一個表為例，要轉多個表則可將DataSet關聯多個表，下面給出完整代碼，包括引用以及main函數與復制函數。
要說明的是，必須先用Sql語句復制表結構，才能順利的使用以下代碼復制數據。
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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data; using System.Data.SqlClient; using System.Data.Common; namespace CopyData { class Program { static void Main(string[] args) { //要復制的表名 string table = "V_Position"; //構造連接字符串 SqlConnectionStringBuilder builder1 = new SqlConnectionStringBuilder(); builder1.DataSource = ".\\CANFLY"; //實例名稱為CANFLY builder1.InitialCatalog = "desdata"; //目標數據庫 builder1.IntegratedSecurity = true; //使用Windows身份驗證 SqlConnectionStringBuilder builder2 = new SqlConnectionStringBuilder(); builder2.DataSource = ".\\CANFLY"; builder2.InitialCatalog = "bddata"; //源數據庫 builder2.IntegratedSecurity = true; //調用復制數據庫函數 InsertTable(builder1.ConnectionString, builder2.ConnectionString, table); } //參數為兩個數據庫的連接字符串 private static void InsertTable(string conString1, string conString2, string tabStr) { //連接數據庫 SqlConnection conn1 = new SqlConnection(); conn1.ConnectionString = conString1; conn1.Open(); SqlConnection conn2 = new SqlConnection(); conn2.ConnectionString = conString2; conn2.Open(); //填充DataSet1 SqlDataAdapter adapter1 = new SqlDataAdapter("select * from " + tabStr, conn1); DataSet dataSet1 = new DataSet(); if (dataSet1 != null) { adapter1.Fill(dataSet1, tabStr); } SqlDataAdapter adapter2 = new SqlDataAdapter("select * from " + tabStr, conn2); DataSet dataSet2 = new DataSet(); SqlCommand cmd2 = new SqlCommand("select count(*) from " + tabStr, conn2); Object res2 = cmd2.ExecuteScalar(); if (res2 != null) { int nCount = Convert.ToInt32(res2.ToString()); if (nCount == 0) { conn1.Close(); conn2.Close(); return; } } //填充DataSet2 if (dataSet2 != null) { adapter2.Fill(dataSet2, tabStr); } //復制數據 for (int j = 0; j < dataSet2.Tables[0].Rows.Count; j++) { dataSet1.Tables[0].LoadDataRow(dataSet2.Tables[0].Rows[j].ItemArray, false); } //將DataSet變換顯示在與其關聯的目標數據庫 SqlCommandBuilder cb = new SqlCommandBuilder(adapter1); adapter1.Update(dataSet1, tabStr); cb.RefreshSchema(); Console.WriteLine("表" + tabStr + "復制成功！"); conn1.Close(); conn2.Close(); } } } |
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原文鏈接：http://blog.csdn.net/u011421608/article/details/39957873
