数据库备份与还原的sql语句
//数据库备份
backup database northwind to disk='c:\dbbackup\northwind.bak';
//数据库还原
//数据库还原
use master;
alter database northwind set offline with rollback immediate
restore database northwind from disk='c:\dbbackup\northwind.bak'
alter database northwind set online with rollback immediate;//数据库备份
backup database northwi
