命令查看DB restore进度

SELECT DB_NAME(er.[database_id]) [DatabaseName],er.[session_id] AS [SessionID],er.[command] AS [CommandType]
,est.[text] [StatementText],er.[status] AS [Status],CONVERT(DECIMAL(5, 2), er.[percent_complete]) AS [Complete_Percent],
CONVERT(DECIMAL(38, 2), er.[total_elapsed_time] / 60000.00) AS [ElapsedTime_m],CONVERT(DECIMAL(38, 2),
 er.[estimated_completion_time] / 60000.00) AS [EstimatedCompletionTime_m],er.[last_wait_type] [LastWait],
 er.[wait_resource] [CurrentWait]
 FROM sys.dm_exec_requests AS er 
 INNER JOIN sys.dm_exec_sessions AS es ON er.[session_id] = es.[session_id]
 CROSS APPLY sys.dm_exec_sql_text(er.[sql_handle]) est
 WHERE er.[command] = 'RESTORE DATABASE'