Home > Database > Mysql Tutorial > 调用sql语句实现SqlServer的备份和还原

调用sql语句实现SqlServer的备份和还原

WBOY
Release: 2016-06-07 16:21:35
Original
1268 people have browsed it

调用sql语句实现SqlServer的备份还原,包括完整备份和差异备份,因为执行备份还原需要一定的时间,因此需要设定 CommandTimeout参数。 /// summary /// 备份数据库 调用SQL语句 /// /summary /// param name=strFileName备份文件名/param /// param name=Back

 调用sql语句实现SqlServer的备份还原,包括完整备份和差异备份,因为执行备份还原需要一定的时间,因此需要设定 CommandTimeout参数。

  ///

  /// 备份数据库 调用SQL语句

  ///

  /// 备份文件名

  /// 0表示完整备份,为1表示差异备份

  ///

  public bool BackUPDB(string strFileName, int BackUpType)

  {

  //如果是差异备份,就是看一下文件是否存在,如果不存在,,就不执行

  if (BackUpType == 1 && File.Exists(strFileName) == false)

  {

  return false;

  }

  bool result = false;

  try

  {

  string[] strConnSqlArr = strConnSql.Split(';');

  string DBName = strConnSqlArr[4].ToString()。Split('=')[1].ToString();//数据库名称

  string backUp_full = string.Format("backup database {0} to disk = '{1}' ;", DBName, strFileName);

  string backUp_Diff = string.Format("backup database {0} to disk='{1}' WITH DIFFERENTIAL ;", DBName, strFileName);

  WKK.DBUtility.DbHelperSQL.ExecuteSql(BackUpType == 0 ? backUp_full : backUp_Diff, 600);

  result = true;

  }

  catch (Exception ex)

  {

  Common.Log.WriteLog(string.Format("备份{0}数据库失败", BackUpType == 0 ? "完整" : "差异"), ex);

  //  System.Diagnostics.Debug.WriteLine(string.Format("备份{0}数据库失败", BackUpType == 0 ? "完整" : "差异"));

  result = false;

  }

  finally

  {

  if (result == true)

  {

  string str_InfoContent = string.Format("备份{0}数据库成功", BackUpType == 0 ? "完整" : "差异");

  // System.Diagnostics.Debug.WriteLine(str_InfoContent);

  }

  }

  return result;

  }

  ///

  /// 还原数据库 使用Sql语句

  ///

  /// 数据库名

  /// 备份文件名

  public bool RestoreDB(string strDbName, string strFileName)

  {

  bool result = false;

  try

  {

  string strConnSql = ConfigurationSettings.AppSettings["ConnectionString"].ToString();

  string[] strConnSqlArr = strConnSql.Split(';');

  string DBName = strConnSqlArr[4].ToString()。Split('=')[1].ToString();//数据库名称

  #region 关闭所有访问数据库的进程,否则会导致数据库还原失败 闫二永  17:39 2014/3/19

  string cmdText = String.Format("EXEC sp_KillThread @dbname='{0}'", DBName);

  WKK.DBUtility.DbHelperSQL.connectionString = strConnSql.Replace(DBName, "master");

  WKK.DBUtility.DbHelperSQL.ExecuteSql(cmdText);

  #endregion

  string Restore = string.Format("RESTORE DATABASE {0} FROM DISK='{1}'WITH replace", DBName, strFileName);

  WKK.DBUtility.DbHelperSQL.ExecuteSql(Restore, 600);

  result = true;

  }

  catch (Exception ex)

  {

  MessageBox.Show("还原数据库失败rn" + ex.Message, "系统提示!", MessageBoxButtons.OK, MessageBoxIcon.Warning);

  Common.Log.WriteLog(string.Format("还原数据库失败--{0}", DateTime.Now.ToString()), ex);

  result = false;

  }

  finally

  {

//恢复成功后需要重启程序

  if (result)

  {

  //

  }

  }

  return result;

  }

  ///

  ///  执行一条SQL语句

  ///

  /// sql语句

  /// 等待连接打开的时间(以秒为单位)。 默认值为 15 秒。

  ///

  public static int ExecuteSql(string SQLString, int setTimeOut)

  {

  using (SqlConnection connection = new SqlConnection(connectionString))

  {

  using (SqlCommand cmd = new SqlCommand(SQLString, connection))

  {

  try

  {

  connection.Open();

  cmd.CommandTimeout = setTimeOut;

  int rows = cmd.ExecuteNonQuery();

  connection.Close();

  return rows;

  }

  catch (System.Data.SqlClient.SqlException e)

  {

  connection.Close();

  throw e;

  }

  }

  }

  }

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template