利用SQLDMO實(shí)現(xiàn)的，只要添加SQLDMO引用就好了，然后利用下邊的類的方法就可以實(shí)現(xiàn)了。
我把原作者的類擴(kuò)充了一下，可以自動(dòng)識(shí)別web.config里?的數(shù)據(jù)庫(kù)連接字符串，可以通過(guò)變量設(shè)置還原恢復(fù)的信息。

需要注意的時(shí)還原，還原的時(shí)候問(wèn)題最大了，有別的用戶使用數(shù)據(jù)庫(kù)的時(shí)候無(wú)法還原，解決辦法就是在MASTER數(shù)據(jù)庫(kù)中添加一個(gè)存儲(chǔ)過(guò)程：


create?proc?killspid?(@dbname?varchar(20))
as
begin
declare?@sql?nvarchar(500)
declare?@spid?int
set?@sql='declare?getspid?cursor?for?
select?spid?from?sysprocesses?where?dbid=db_id('''+@dbname+''')'
exec?(@sql)
open?getspid
fetch?next?from?getspid?into?@spid
while?@@fetch_status<>-1
begin
exec('kill?'+@spid)
fetch?next?from?getspid?into?@spid
end
close?getspid
deallocate?getspid
end
GO


在還原之前先執(zhí)行這個(gè)存儲(chǔ)過(guò)程，需要傳遞dbname，就是你的數(shù)據(jù)庫(kù)的名字。下邊是類的原代碼：（web.config里的數(shù)據(jù)庫(kù)連接字符串是constr）
?

using?System;

using?System.Configuration;

using?System.Data.SqlClient;

using?System.Data;

namespace?web.base_class

{

?????///?<summary>

?????///?DbOper類,主要應(yīng)用SQLDMO實(shí)現(xiàn)對(duì)Microsoft?SQL?Server數(shù)據(jù)庫(kù)的備份和恢復(fù)

?????///?</summary>

?????public?class?DbOper

?????{

??????????private?string?server;

??????????private?string?uid;

??????????private?string?pwd;

??????????private?string?database;

??????????private?string?conn;

?????????///?<summary>

?????????///?DbOper類的構(gòu)造函數(shù)

?????????///?</summary>

?????????public?DbOper()

?????????{

??????????????conn=System.Configuration.ConfigurationSettings.AppSettings["constr"].ToString();

??????????????server=cut(conn,"server=",";");

??????????????uid=cut(conn,"uid=",";");

??????????????pwd=cut(conn,"pwd=",";");

??????????????database=cut(conn,"database=",";");

?????????}

?????????public?string?cut(string?str,string?bg,string?ed)

?????????{

??????????????string?sub;

??????????????sub=str.Substring(str.IndexOf(bg)+bg.Length);

??????????????sub=sub.Substring(0,sub.IndexOf(";"));

??????????????return?sub;

?????????}

?

?????????///?<summary>

?????????///?數(shù)據(jù)庫(kù)備份

?????????///?</summary>

?????????public??bool?DbBackup(string?url)

?????????{

??????????????SQLDMO.Backup?oBackup?=?new?SQLDMO.BackupClass();

??????????????SQLDMO.SQLServer?oSQLServer?=?new?SQLDMO.SQLServerClass();

??????????????try

??????????????{

???????????????????oSQLServer.LoginSecure?=?false;

???????????????????oSQLServer.Connect(server,uid,?pwd);

???????????????????oBackup.Action?=?SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;

???????????????????oBackup.Database?=?database;

???????????????????oBackup.Files?=?url;//"d:\Northwind.bak";

???????????????????oBackup.BackupSetName?=?database;

???????????????????oBackup.BackupSetDescription?=?"數(shù)據(jù)庫(kù)備份";

???????????????????oBackup.Initialize?=?true;

???????????????????oBackup.SQLBackup(oSQLServer);

???????????????????return?true;

??????????????}

??????????????catch

??????????????{

???????????????????return?false;

???????????????????throw;

??????????????}

??????????????finally

??????????????{

???????????????????oSQLServer.DisConnect();

??????????????}

?????????}

?

?????????///?<summary>

?????????///?數(shù)據(jù)庫(kù)恢復(fù)

?????????///?</summary>

?????????public?string?DbRestore(string?url)

?????????{

??????????????if(exepro()!=true)//執(zhí)行存儲(chǔ)過(guò)程

??????????????{

???????????????????return?"操作失敗";

??????????????}

??????????????else

??????????????{

???????????????????SQLDMO.Restore?oRestore?=?new?SQLDMO.RestoreClass();

???????????????????SQLDMO.SQLServer?oSQLServer?=?new?SQLDMO.SQLServerClass();

???????????????????try

???????????????????{

????????????????????????oSQLServer.LoginSecure?=?false;

????????????????????????oSQLServer.Connect(server,?uid,?pwd);

????????????????????????oRestore.Action?=?SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;

????????????????????????oRestore.Database?=?database;

????????????????????????oRestore.Files?=?url;//@"d:\Northwind.bak";

????????????????????????oRestore.FileNumber?=?1;

????????????????????????oRestore.ReplaceDatabase?=?true;

????????????????????????oRestore.SQLRestore(oSQLServer);

???????????????????????return?"ok";

???????????????????}

???????????????????catch(Exception?e)

???????????????????{

???????????????????????return?"恢復(fù)數(shù)據(jù)庫(kù)失敗";

???????????????????????throw;

???????????????????}

???????????????????finally

???????????????????{

????????????????????????oSQLServer.DisConnect();

???????????????????}

??????????????}

?????????}

??????????private?bool?exepro()

?????????{

??????????????SqlConnection?conn1?=?new?SqlConnection("server="+server+";uid="+uid+";pwd="+pwd+";database=master");

??????????????SqlCommand?cmd?=?new?SqlCommand("killspid",conn1);

??????????????cmd.CommandType?=?CommandType.StoredProcedure;

??????????????cmd.Parameters.Add("@dbname","port");

??????????????try

??????????????{

???????????????????conn1.Open();

???????????????????cmd.ExecuteNonQuery();

???????????????????return?true;

??????????????}

??????????????catch(Exception?ex)

??????????????{

???????????????????return?false;

??????????????}

??????????????finally

??????????????{

???????????????????conn1.Close();

??????????????}

?

?????????}

?????}

}




本文轉(zhuǎn)自高海東博客園博客，原文鏈接：http://www.cnblogs.com/ghd258/archive/2006/02/28/339458.html，如需轉(zhuǎn)載請(qǐng)自行聯(lián)系原作者

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