Sql Server数据库备份/还原工具(C#源码)

C#操作Sql数据库的例子using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace BackupSql{ public partial class DBTools : Form { private static DBTools _Instance = null; public static DBTools Instance() { if (_Instance == null) { _Instance = new DBTools(); } else { MessageBox.Show("已经有一个实例在运行！"); } return _Instance; } public DBTools() { InitializeComponent(); } private void GetSQLServerList() { //get all available SQL Servers SQLDMO._Application sqlApp = new SQLDMO.ApplicationClass(); SQLDMO.NameList sqlServers = sqlApp.ListAvailableSQLServers(); for (int i = 0; i < sqlServers.Count; i ) { object srv = sqlServers.Item(i 1); if (srv != null) { this.cboServers.Items.Add(srv); } } if (this.cboServers.Items.Count > 0) this.cboServers.SelectedIndex = 0; else this.cboServers.Text = "<No available SQL Servers>"; } private void GetBackUpDB() { SQLDMO.Application sqlApp = new SQLDMO.ApplicationClass(); SQLDMO.SQLServer srv = new SQLDMO.SQLServer(); srv.Connect(this.cboServers.Text.Trim(), this.txtUserName.Text.Trim(), this.txtPassword.Text.Trim()); foreach (SQLDMO.Database db in srv.Databases) { if (db.Name != null) this.cboDatabase.Items.Add(db.Name); } } private void pictureBox1_Click(object sender, EventArgs e) { MessageBox.Show("欢迎使用数据库备份、还原工具，本工具将协助你备份和还原数据库，确保数据安全!", "备份您的数据库"); } private void BackUpDB() { string selfName = this.txtSavePath.Text.Trim() this.cboDatabase.Text.Trim() "_" System.DateTime.Now.ToString("yyyy-MM-dd_HHmm") "[" cboServers.Text.Trim() "]" ".DAT"; string deviceName = this.cboDatabase.Text.Trim() "bak"; string remark = "数据备份"; //BACKUP DB SQLDMO.Backup oBackup = new SQLDMO.BackupClass(); SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass(); oBackup.Action = 0; oBackup.Initialize = true; SQLDMO.BackupSink_PercentCompleteEventHandler pceh = new SQLDMO.BackupSink_PercentCompleteEventHandler(Step); oBackup.PercentComplete = pceh; try { oSQLServer.LoginSecure = false; oSQLServer.Connect(this.cboServers.Text.Trim(), this.txtUserName.Text.Trim(), this.txtPassword.Text.Trim()); oBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database; oBackup.Database = this.cboDatabase.Text.Trim();//数据库名 oBackup.Files = selfName;//文件路径 oBackup.BackupSetName = deviceName;//备份名称 oBackup.BackupSetDescription = remark;//备份描述 oBackup.Initialize = true; oBackup.SQLBackup(oSQLServer); } catch (System.Exception ex) { MessageBox.Show("数据备份失败：" ex.ToString()); } finally { oSQLServer.DisConnect(); } } private void Step(string message, int percent) { this.progressBar1.Value = percent; } private void button2_Click(object sender, EventArgs e) { this.Cursor = Cursors.WaitCursor; this.label6.Visible = true; this.progressBar1.Visible = true; this.BackUpDB(); this.Cursor = Cursors.Default; this.label6.Text = "备份已完成!"; } public void RestoreDB() { string filePath = this.txtBackUpFile.Text.Trim(); SQLDMO.Restore oRestore = new SQLDMO.RestoreClass(); SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass(); oRestore.Action = 0; SQLDMO.RestoreSink_PercentCompleteEventHandler pceh = new SQLDMO.RestoreSink_PercentCompleteEventHandler(Step); oRestore.PercentComplete = pceh; try { oSQLServer.Connect(this.cboServers.Text.Trim(), this.txtUserName.Text.Trim(), this.txtPassword.Text.Trim()); SQLDMO.QueryResults qr = oSQLServer.EnumProcesses(-1); int iColPIDNum = -1; int iColDbName = -1; //杀死其它的连接进程 for (int i = 1; i <= qr.Columns; i ) { string strName = qr.get_ColumnName(i); if (strName.ToUpper().Trim() == "SPID") { iColPIDNum = i; } else if (strName.ToUpper().Trim() == "DBNAME") { iColDbName = i; } if (iColPIDNum != -1 && iColDbName != -1) break; } for (int i = 1; i <= qr.Rows; i ) { int lPID = qr.GetColumnLong(i, iColPIDNum); string strDBName = qr.GetColumnString(i, iColDbName); if (strDBName.ToUpper() == "CgRecord".ToUpper()) oSQLServer.KillProcess(lPID); } oRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database; oRestore.Database = this.cboDBtoBackup.Text; oRestore.Files = filePath; oRestore.FileNumber = 1; oRestore.ReplaceDatabase = true; oRestore.SQLRestore(oSQLServer); } catch (System.Exception ex) { MessageBox.Show("数据还原失败：" ex.ToString()); } finally { oSQLServer.DisConnect(); } } private void button3_Click(object sender, EventArgs e) { this.folderBrowserDialog1.Description = "请选择备份文件存放目录"; this.folderBrowserDialog1.ShowNewFolderButton = true; this.folderBrowserDialog1.ShowDialog(); this.txtSavePath.Text = this.folderBrowserDialog1.SelectedPath; } private void button4_Click(object sender, EventArgs e) { this.openFileDialog1.DefaultExt = "*.dat"; this.openFileDialog1.Title = "请选择要还原的数据库备份文件."; this.openFileDialog1.ShowDialog(); this.txtBackUpFile.Text = this.openFileDialog1.FileName; } private void button5_Click(object sender, EventArgs e) { this.Cursor = Cursors.WaitCursor; this.label6.Visible = true; this.progressBar1.Visible = true; this.RestoreDB(); this.Cursor = Cursors.Default; this.label6.Text = "还原已完成!"; } private void button6_Click(object sender, EventArgs e) { Close(); } private void button１_Click(object sender, EventArgs e) { this.txtSavePath.Text = Application.StartupPath;// GetSQLServerList(); GetBackUpDB(); } }}