Im trying to write a query that will tell me how much time a restore (full or log) has taken on SQL server 2008.
I can run this query to find out how much time the backup took:
select database_name,
[uncompressed_size] = backup_size/1024/1024,
[compressed_size] = compressed_backup_size/1024/1024,
backup_start_date,
backup_finish_date,
datediff(s,backup_start_date,backup_finish_date) as [TimeTaken(s)],
from msdb..backupset b
where type = 'L' -- for log backups
order by b.backup_start_date desc
This query will tell me what is restored but now how much time it took:
select * from msdb..restorehistory
restorehistory
has a column backup_set_id
which will link to msdb..backupset
, but that hold the start and end date for the backup not the restore.
Any idea where to query the start and end time for restores?
We get the following database restoration history in my environment. restore_date: It shows the database restoration date. destination_database_name: We can get the destination database name using this column. user_name: it gives user name that performed the restoration for that particular database.
For most databases the restore operations takes less than 12 hours.
In the Execution Times section of the SET STATISTICS TIME ON statement output, we can find out the time taken by the SQL server to complete the execution of the compiled query plan.
To find the RESTORE DATABASE time, I have found that you can use this query:
declare @filepath nvarchar(1000)
SELECT @filepath = cast(value as nvarchar(1000)) FROM [fn_trace_getinfo](NULL)
WHERE [property] = 2 and traceid=1
SELECT *
FROM [fn_trace_gettable](@filepath, DEFAULT)
WHERE TextData LIKE 'RESTORE DATABASE%'
ORDER BY StartTime DESC;
The downside is, you'll notice that, at least on my test server, the EndTime
is always NULL.
So, I came up with a second query to try and determine the end time. First of all, I apologize that this is pretty ugly and nested like crazy.
The query below assumes the following:
RESTORE DATABASE
and the maximum transaction associated with that record.I'm sure someone can probably take what I've done and refine it, but this appears to work on my test environment:
declare @filepath nvarchar(1000)
SELECT @filepath = cast(value as nvarchar(1000)) FROM [fn_trace_getinfo](NULL)
WHERE [property] = 2 and traceid=1
SELECT *
FROM [fn_trace_gettable](@filepath, DEFAULT) F5
INNER JOIN
(
SELECT F4.EventSequence MainSequence,
MAX(F3.EventSequence) MaxEventSequence, F3.TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F3
INNER JOIN
(
SELECT F2.EventSequence, MIN(TransactionID) as TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F1
INNER JOIN
(
SELECT DatabaseID, SPID, StartTime, ClientProcessID, EventSequence
FROM [fn_trace_gettable](@filepath, DEFAULT)
WHERE TextData LIKE 'RESTORE DATABASE%'
) F2 ON F1.DatabaseID = F2.DatabaseID AND F1.SPID = F2.SPID
AND F1.ClientProcessID = F2.ClientProcessID
AND F1.StartTime > F2.StartTime
GROUP BY F2.EventSequence
) F4 ON F3.TransactionID = F4.TransactionID
GROUP BY F3.TransactionID, F4.EventSequence
) F6 ON F5.EventSequence = F6.MainSequence
OR F5.EventSequence = F6.MaxEventSequence
ORDER BY F5.StartTime
EDIT
I made some changes to the query, since one of the test databases I used is case-sensitive and it was losing some records. I also noticed when restoring from disk that the DatabaseID
is null, so I'm handling that now as well:
SELECT *
FROM [fn_trace_gettable](@filepath, DEFAULT) F5
INNER JOIN
(
SELECT F4.EventSequence MainSequence,
MAX(F3.EventSequence) MaxEventSequence, F3.TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F3
INNER JOIN
(
SELECT F2.EventSequence, MIN(TransactionID) as TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F1
INNER JOIN
(
SELECT DatabaseID, SPID, StartTime, ClientProcessID, EventSequence
FROM [fn_trace_gettable](@filepath, DEFAULT)
WHERE upper(convert(nvarchar(max), TextData))
LIKE 'RESTORE DATABASE%'
) F2 ON (F1.DatabaseID = F2.DatabaseID OR F2.DatabaseID IS NULL)
AND F1.SPID = F2.SPID
AND F1.ClientProcessID = F2.ClientProcessID
AND F1.StartTime > F2.StartTime
GROUP BY F2.EventSequence
) F4 ON F3.TransactionID = F4.TransactionID
GROUP BY F3.TransactionID, F4.EventSequence
) F6 ON F5.EventSequence = F6.MainSequence
OR F5.EventSequence = F6.MaxEventSequence
ORDER BY F5.StartTime
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With