用VB.NET 和SQL Server2000做项目,请问,怎么实现数据库的备份和还原。谢谢

SQL的备份语句

备份整个数据库：

BACKUP DATABASE { database_name | @database_name_var }

TO < backup_device > [ ,...n ]

[ WITH

[ BLOCKSIZE = { blocksize | @blocksize_variable } ]

[ [ , ] DESCRIPTION = { 'text' | @text_variable } ]

[ [ , ] DIFFERENTIAL ]

[ [ , ] EXPIREDATE = { date | @date_var }

| RETAINDAYS = { days | @days_var } ]

[ [ , ] PASSWORD = { password | @password_variable } ]

[ [ , ] FORMAT | NOFORMAT ]

[ [ , ] { INIT | NOINIT } ]

[ [ , ] MEDIADESCRIPTION = { 'text' | @text_variable } ]

[ [ , ] MEDIANAME = { media_name | @media_name_variable } ]

[ [ , ] MEDIAPASSWORD = { mediapassword | @mediapassword_variable } ]

[ [ , ] NAME = { backup_set_name | @backup_set_name_var } ]

[ [ , ] { NOSKIP | SKIP } ]