標籤:os io 檔案 資料 for art ar cti
- -- 備份資料庫
- backup database db_CSManage to disk=‘c:\backup.bak‘
- -- 還原資料庫,必須先備份該資料庫的記錄檔到原先的備份檔案中
- backup log db_CSManage to disk=‘c:\backup.bak‘
- restore database db_CSManage from disk=‘c:\backup.bak‘
其中db_CSManage是資料庫名稱,disk後的路徑即是備份檔案儲存的路徑。
知道了SQL語句,那麼在.NET代碼中就容易多了,備份的.NET代碼如下:
- try
- {
- if (txtPath.Text != "" && txtName122.Text != "")
- {
- getSqlConnection geCon = new getSqlConnection();
- SqlConnection con = geCon.GetCon();
- string strBacl = "backup database db_CSManage to disk=‘" + txtPath.Text.Trim() + "\\" + txtName.Text.Trim() + ".bak‘";
- SqlCommand Cmd = new SqlCommand(strBacl, con);
- if (Cmd.ExecuteNonQuery() != 0)
- {
- MessageBox.Show("資料備份成功!", "提示框", MessageBoxButtons.OK, MessageBoxIcon.Information);
- this.Close();
- }
- else
- {
- MessageBox.Show("資料備份失敗!", "提示框", MessageBoxButtons.OK, MessageBoxIcon.Information);
- }
- }
- else
- {
- MessageBox.Show("請填寫備份的正確位置及檔案名稱!", "提示框", MessageBoxButtons.OK, MessageBoxIcon.Information);
- }// end
- }
- catch (Exception ee)
- {
- MessageBox.Show(ee.Message.ToString());
- }
以下是還原資料庫的代碼,在樣本中發現開頭得先刪除與該資料庫相關的進程,然後在還原之前得先把資料庫記錄備份到開始的備份檔案中,然後才還原備份檔案,要不然會出錯的,代碼如下:
- if (textPaht.Text != "")
- {
- getSqlConnection geCon = new getSqlConnection();
- SqlConnection con = geCon.GetCon();
- if (con.State == ConnectionState.Open)
- {
- con.Close();
- }
- string DateStr = "Data Source=niunan\\sqlexpress;Database=master;User id=sa;PWD=123456";
- SqlConnection conn = new SqlConnection(DateStr);
- conn.Open();
- //-------------------殺掉所有串連 db_CSManage 資料庫的進程--------------
- string strSQL = "select spid from master..sysprocesses where dbid=db_id( ‘db_CSManage‘) ";
- SqlDataAdapter Da = new SqlDataAdapter(strSQL, conn);
- DataTable spidTable = new DataTable();
- Da.Fill(spidTable);
- SqlCommand Cmd = new SqlCommand();
- Cmd.CommandType = CommandType.Text;
- Cmd.Connection = conn;
- for (int iRow = 0; iRow <= spidTable.Rows.Count - 1; iRow++)
- {
- Cmd.CommandText = "kill " + spidTable.Rows[iRow][0].ToString(); //強行關閉使用者進程
- Cmd.ExecuteNonQuery();
- }
- conn.Close();
- conn.Dispose();
- //--------------------------------------------------------------------
- SqlConnection sqlcon = new SqlConnection(DateStr);
- sqlcon.Open();
- string sql = "backup log db_CSManage to disk=‘" + textPaht.Text.Trim() + "‘ restore database db_CSManage from disk=‘" + textPaht.Text.Trim() + "‘";
- SqlCommand sqlCmd = new SqlCommand(sql, sqlcon);
- sqlCmd.ExecuteNonQuery();
- sqlCmd.Dispose();
- sqlcon.Close();
- sqlcon.Dispose();
- MessageBox.Show("資料還原成功!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
- MessageBox.Show("為了必免資料丟失,在資料庫還原後將關閉整個系統。");
- Application.Exit();
- }
- else
- {
- MessageBox.Show("請選擇備份檔案!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
- }