• Asp.net 备份和还原SQL Server及压缩Access数据库


     *
     * 功能说明:备份和恢复SQL Server数据库
     * 作者: 刘功勋;
     * 版本:V0.1(C#2.0);时间:2007-1-1
     * 当使用SQL Server时,请引用 COM组件中的,SQLDMO.dll组件
     * 当使用Access中,请浏览添加引用以下两个dll
     *          引用C:/Program Files/Common Files/System/ado/msadox.dll,该DLL包含ADOX命名空间
     *          引用C:/Program Files/Common Files/System/ado/msjro.dll,该DLL包含JRO命名空间
     * *******************************************************************************/
    using System;
    using System.Data;
    using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.IO;
    using ADOX;//该命名空间包含创建ACCESS的类(方法)--解决方案 ==> 引用 ==> 添加引用 ==> 游览找到.dll
    using JRO;//该命名空间包含压缩ACCESS的类(方法)

    namespace EC
    {
        ///
        /// 数据库恢复和备份
        ///
        public class SqlBackObject
        {
            public SqlBackObject()
            {
                //
                // TODO: 在此处添加构造函数逻辑
                //
            }

            #region SQL数据库备份
           ///
            /// SQL数据库备份
           ///
           ///

    SQL服务器IP或(Localhost)
           ///

    数据库登录名
           ///

    数据库登录密码
           ///

    数据库名
           ///

    备份到的路径
            public static void SQLBACK(string ServerIP,string LoginName,string LoginPass,string DBName,string BackPath)
            {
                SQLDMO.Backup oBackup = new SQLDMO.BackupClass();
                SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
                try
                {
                    oSQLServer.LoginSecure = false;
                    oSQLServer.Connect(ServerIP, LoginName, LoginPass);
                    oBackup.Database = DBName;
                    oBackup.Files = BackPath;
                    oBackup.BackupSetName = DBName;
                    oBackup.BackupSetDescription = "数据库备份";
                    oBackup.Initialize = true;
                    oBackup.SQLBackup(oSQLServer);

                }
                catch (Exception e)
                {
                    throw new Exception(e.ToString());
                }
                finally
                {
                    oSQLServer.DisConnect();
                }
            }
            #endregion

            #region SQL恢复数据库
            ///
            /// SQL恢复数据库
            ///
            ///

    SQL服务器IP或(Localhost)
            ///

    数据库登录名
            ///

    数据库登录密码
            ///

    要还原的数据库名
            ///

    数据库备份的路径

            public static void SQLDbRestore(string ServerIP,string LoginName,string LoginPass,string DBName,string BackPath)
            {
              
                SQLDMO.Restore orestore = new SQLDMO.RestoreClass();
                SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
                try
                {
                    oSQLServer.LoginSecure = false;
                    oSQLServer.Connect(ServerIP, LoginName, LoginPass);
                    orestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
                    orestore.Database = DBName;
                    orestore.Files = BackPath;
                    orestore.FileNumber = 1;
                    orestore.ReplaceDatabase = true;
                    orestore.SQLRestore(oSQLServer);

                }
                catch (Exception e)
                {
                    throw new Exception(e.ToString());
                }
                finally
                {
                    oSQLServer.DisConnect();
                }
            }


            #endregion

            #region 根据指定的文件名称创建Access数据库
            ///
            /// 根据指定的文件名称创建数据
            ///
            ///

    绝对路径+文件名称
            public static void CreateAccess(string DBPath)
            {
                if (File.Exists(DBPath))//检查数据库是否已存在
                {
                    throw new Exception("目标数据库已存在,无法创建");
                }          
                DBPath = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath;
                //创建一个CatalogClass对象实例
                ADOX.CatalogClass cat = new ADOX.CatalogClass();
                //使用CatalogClass对象的Create方法创建ACCESS数据库
                cat.Create(DBPath);

            }
            #endregion

            #region 压缩Access数据库
            ///
            /// 压缩Access数据库
            ///
            ///

    数据库绝对路径
            public static void CompactAccess(string DBPath)
            {
                if (!File.Exists(DBPath))
                {
                    throw new Exception("目标数据库不存在,无法压缩");
                }
              
                //声明临时数据库名称
                string temp = DateTime.Now.Year.ToString();
                temp += DateTime.Now.Month.ToString();
                temp += DateTime.Now.Day.ToString();
                temp += DateTime.Now.Hour.ToString();
                temp += DateTime.Now.Minute.ToString();
                temp += DateTime.Now.Second.ToString() + ".bak";
                temp = DBPath.Substring(0, DBPath.LastIndexOf("//") + 1) + temp;
                //定义临时数据库的连接字符串
                string temp2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+temp;
                //定义目标数据库的连接字符串
                string DBPath2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath;
                //创建一个JetEngineClass对象的实例
                JRO.JetEngineClass jt = new JRO.JetEngineClass();
                //使用JetEngineClass对象的CompactDatabase方法压缩修复数据库
                jt.CompactDatabase(DBPath2, temp2);
                //拷贝临时数据库到目标数据库(覆盖)
                File.Copy(temp, DBPath, true);
                //最后删除临时数据库
                File.Delete(temp);
            }
            #endregion

            #region 备份Access数据库
            ///
            /// 备份Access数据库
            ///
            ///

    要备份的数据库绝对路径
            ///

    备份到的数据库绝对路径
            ///
            public static void Backup(string srcPath,string aimPath)
            {
               
                if (!File.Exists(srcPath))
                {
                    throw new Exception("源数据库不存在,无法备份");
                }
                try
                {
                    File.Copy(srcPath,aimPath,true);
                }
                catch(IOException ixp)
                {
                    throw new Exception(ixp.ToString());
                }
               
            }

            #endregion

            #region 还原Access数据库
            ///
            /// 还原Access数据库
            ///
            ///

    备份的数据库绝对路径
            ///

    要还原的数据库绝对路径
            public static void RecoverAccess(string bakPath,string dbPath)
            {          
                if (!File.Exists(bakPath))
                {
                    throw new Exception("备份数据库不存在,无法还原");
                }
                try
                {
                    File.Copy(bakPath, dbPath, true);
                }
                catch (IOException ixp)
                {
                    throw new Exception(ixp.ToString());
                }       
            }       
            #endregion
        }
    }

  • 相关阅读:
    美团面试,360面试 ,滴滴面试,阿里面试,百度面试,京东面试,搜狗面试:
    Maven 3-Maven依赖版本冲突的分析及解决小结 (阿里,美团,京东面试)
    maven snapshot和release版本的区别
    Maven 生命周期 和插件
    Maven pom 文件解释
    Zookeeper原理架构
    sublime 支持PHP语法提示
    Zen Coding 用法
    让浏览器屏蔽js
    淘宝设计师入门:设计师SDK环境配置
  • 原文地址:https://www.cnblogs.com/yuerdongni/p/2805703.html
Copyright © 2020-2023  润新知