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标题 调用sql语句实现SqlServer的备份和还原
范文
    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="BackUpType">0表示完整备份,为1表示差异备份</param>
    /// <returns></returns>
    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;
    }
    /// <summary>
    /// 还原数据库 使用Sql语句
    /// </summary>
    /// <param name="strDbName">数据库名</param>
    /// <param name="strFileName">备份文件名</param>
    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;
    }
    /// <summary>
    /// 执行一条SQL语句
    /// </summary>
    /// <param name="SQLStringList">sql语句</param>
    /// <param name="SetTimeout"> 等待连接打开的时间(以秒为单位)。 默认值为 15 秒。 </param>
    /// <returns></returns>
    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;
    }
    }
    }
    }
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更新时间:2025/5/21 21:56:24