运行维护
备份还原
# server_name
# user_name
# password
# database_name
# backup_path,备份路径,X:PathToBackupLocation[Name_of_Database].bak
SQLCMD -S {server_name} -U {user_name} -P {password} -d master -Q"BACKUP DATABASE {database_name} to disk='{backup_path}'"