OS Reboot and Uptime Latest

The latest reboot of a Device and its uptime since reboot.

Uptime in Seconds metric.
FACT_OS_REBOOT_LATEST: This is calculated as the seconds difference between the latest OS reboot time stamp and the current system time stamp.
FACT_OS_REBOOT_COUNT: This is calculated as the seconds difference between the OS reboot time stamp and the previous reboot time stamp

Methodology: Kimball Star Schema.

Fact Type: Transactional

Grain: Latest Operating System (OS) reboot on a Device at a given timestamp.

OS Reboot and Uptime Latest schema

OS Reboot and Uptime Latest table joins

FACT: FACT_OS_REBOOT_LATEST

Dimension	Dimension key	Fact key	Cardinality
DIM_TENANT	TENANT_DK	TENANT_DK	1:N
DIM_CUSTOMER	CUSTOMER_SK	CUSTOMER_SK	1:N
DIM_CUSTOMER_LATEST	CUSTOMER_DK	CUSTOMER_DK	1:N
DIM_SITE	SITE_SK	SITE_SK	1:N
DIM_SITE_LATEST	SITE_DK	SITE_DK	1:N
DIM_DEVICE_SUMMARY	DEVICE_SK	DEVICE_SK	1:N
DIM_DEVICE_SUMMARY_LATEST	DEVICE_DK	DEVICE_DK	1:N
DIM_DATE	DATE_DK	BOOT_DATE_DK	1:N
DIM_TIME	TIME_SK	BOOT_TIME_DK	1:N

Boilerplate for OS Reboot and Uptime Latest joins

Copy

Select
-- enter columns here
From SHARED_ANALYTICS_DATA.SHARED_DATA.FACT_OS_REBOOT_LATEST f
Join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_CUSTOMER c on f.Customer_SK = c.Customer_SK
Join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_CUSTOMER_LATEST cl on f.Customer_DK = cl.Customer_DK
join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_SITE s on f.Site_SK = s.Site_SK
join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_SITE_LATEST sl on f.Site_DK = sl.Site_DK
join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_DEVICE_SUMMARY d on f.Device_SK = d.Device_SK
join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_DEVICE_SUMMARY_LATEST dl on f.Device_DK = dl.Device_DK
join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_DATE dt on f.Event_Date_DK = dt.Date_DK
join SHARED_ANALYTICS_DATA.SHARED_DATA.DIM_TIME t on f.Event_Time_DK = t.Time_SK
-- Where clauses here
-- Group By columns here
-- Having clauses here
-- Order by columns here