17 July,2012 by Tom Collins
Question: I’ve issued a RESTORE DATABASE on a 700 GB database. It’s been taking awhile and business users are keen to know the estimate percent complete and estimate finish time . How can I find out this information?
Answer: Using the SQL Server DMV sys.dm_exec_requests , assists in estimating the finish time. The percent_complete and estimated_completion columns are useful.
While the RESTORE is running – run the query below without the session_id.
Look for a record with RESTORE COMMAND in the command column.
I’ve included a sample query , which returns a percent complete and estimated completion. Use it for: BACKUP \ RESTORE, DBCC CHECKDB , DBCC CHECKTABLE,DBCC SHRINKDB , dbcc SHRINKFILE,DBCC INDEXDEFRAG,ALTER INDEX REORGANIZE, ROLLBACK
SELECT session_id,percent_complete,DATEADD(MILLISECOND,estimated_completion_time,CURRENT_TIMESTAMP) Estimated_finish_time, (total_elapsed_time/1000)/60 Total_Elapsed_Time_MINS , DB_NAME(Database_id) Database_Name ,command,sql_handle FROM sys.dm_exec_requests WHERE session_id=57
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