用asp.net还原与恢复sqlserver数据库
类别: ASP.NET教程 
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
在还原之前先执行这个存储过程，需要传递dbname，就是你的数据库的名字。下边是类的原代码：（web.config里的数据库连接字符串是constr）
using System;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;
namespace web.base_class
{
/// <summary>
/// DbOper类,主要应用SQLDMO实现对Microsoft SQL Server数据库的备份和恢复
/// </summary>
public class DbOper
{
private string server;
private string uid;
private string pwd;
private string database;
private string conn;
/// <summary>
/// DbOper类的构造函数
/// </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>
/// 数据库备份
/// </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 = \"数据库备份\";
oBackup.Initialize = true;
oBackup.SQLBackup(oSQLServer);
return true;
}
catch
{
return false;
throw;
}
finally
{
oSQLServer.DisConnect();
}
}
/// <summary>
/// 数据库恢复
/// </summary>
public string DbRestore(string url)
{
if(exepro()!=true)//执行存储过程
{
return \"操作失败\";
}
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 \"恢复数据库失败\";
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();
}
}
}
}
