本文章以一個(gè)表為例，要轉(zhuǎn)多個(gè)表則可將DataSet關(guān)聯(lián)多個(gè)表，下面給出完整代碼，包括引用以及main函數(shù)與復(fù)制函數(shù)。
要說(shuō)明的是，必須先用Sql語(yǔ)句復(fù)制表結(jié)構(gòu)，才能順利的使用以下代碼復(fù)制數(shù)據(jù)。
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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(fù)制的表名 string table = "V_Position"; //構(gòu)造連接字符串 SqlConnectionStringBuilder builder1 = new SqlConnectionStringBuilder(); builder1.DataSource = ".\\CANFLY"; //實(shí)例名稱(chēng)為CANFLY builder1.InitialCatalog = "desdata"; //目標(biāo)數(shù)據(jù)庫(kù) builder1.IntegratedSecurity = true; //使用Windows身份驗(yàn)證 SqlConnectionStringBuilder builder2 = new SqlConnectionStringBuilder(); builder2.DataSource = ".\\CANFLY"; builder2.InitialCatalog = "bddata"; //源數(shù)據(jù)庫(kù) builder2.IntegratedSecurity = true; //調(diào)用復(fù)制數(shù)據(jù)庫(kù)函數(shù) InsertTable(builder1.ConnectionString, builder2.ConnectionString, table); } //參數(shù)為兩個(gè)數(shù)據(jù)庫(kù)的連接字符串 private static void InsertTable(string conString1, string conString2, string tabStr) { //連接數(shù)據(jù)庫(kù) 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(fù)制數(shù)據(jù) 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(guān)聯(lián)的目標(biāo)數(shù)據(jù)庫(kù) SqlCommandBuilder cb = new SqlCommandBuilder(adapter1); adapter1.Update(dataSet1, tabStr); cb.RefreshSchema(); Console.WriteLine("表" + tabStr + "復(fù)制成功！"); conn1.Close(); conn2.Close(); } } } |
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原文鏈接：http://blog.csdn.net/u011421608/article/details/39957873
