Sql Server - how to get last server restart (DMV reset date/time)

Question

I'm using some modifications to Glenn Berry's excellent DMV queries!

However, I would like to add to the resultset the 'last server restart', or to be more specific, the date/time the statistics for (all, the specific) DMV was reset.

Since it would be quite important to know last reset when looking at the statistics, I want to make absolutely sure the date/time is accurate and shown.

Question: How can you get the most accurate date/time of when a/all DMV statistic was reset?

Thanks! -D

Answer 1

SELECT sqlserver_start_time FROM sys.dm_os_sys_info

Answer 2

Using a prior question (different key words), I ended up using this approach. As always, up to the individual what would be 'best' for them!

SELECT create_date FROM sys.databases WHERE name = 'tempdb'

source: Find out how long the sql server service has been running, from t-sql

Answer 3

This will work but you have to know the service name also its only available with R2 and later

SELECT last_startup_time 
FROM   sys.dm_server_services 
WHERE  servicename = "Your Service name" 

Although this won't be totally accurate since you can also reset the DB specific views via a DB detach or a DB close.

Also there are two views that can be reset on a live db sys.dm_os_latch_stats and sys.dm_os_wait_stats