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-- cachebreaker: Any unique number: "So you can break the cache"
/*
this will output
- Oldest database
- Newest database
- If a database is currently being restored
- Number of database grouped by #days old (with earliest date).
- Number of database grouped by #days old (with latest date).
- Average in minutes between database creation per day group.
*/
;with 
oldest_db as
(
select top 1 database_id, name [Description], create_date, datediff(d, create_date, getdate()) [days ago]
from sys.databases
where database_id > 5
and name not like '%_Temp'
order by create_date
), 
newest_db as
(
select top 1 database_id, name, create_date, datediff(d, create_date, getdate()) [days ago]
from sys.databases
where database_id > 5
and name not like '%_Temp'
order by create_date desc
),
temp_db as
(
select database_id, name, create_date, datediff(d, create_date, getdate()) [days ago]
from sys.databases
where database_id > 5
and name like '%_Temp'
),
range_start_db as
(
select min(database_id) [id], concat('# databases ' ,count(*)) [desc], min(create_date) [cd], datediff(d, min(create_date), getdate()) [days ago]
from sys.databases
where database_id > 5
group by datediff(d, create_date, getdate())
)
,
range_end_db as
(
select max(database_id) [id], concat('# databases ' ,count(*)) [desc], max(create_date) [cd], datediff(d, min(create_date), getdate()) [days ago]
from sys.databases
where database_id > 5
group by datediff(d, create_date, getdate())
),
average_db as
(
select max(database_id) [id], concat('average ' , datediff(n, min(create_date), max(create_date)) / convert(decimal,count(*))) [desc], null [f], datediff(d, min(create_date), getdate()) [days ago]
from sys.databases
where database_id > 5
group by datediff(d, create_date, getdate())
)


select 1, 'oldest ' [category], *
from oldest_db
union
select 2, 'newest ',*
from newest_db
union
select 3, 'restoring ',*
from temp_db
union
select 4, 'days group start',*
from range_start_db
union
select 5, 'days group end',*
from range_end_db
union
select 6, 'duration (min)',*
from average_db

order by 1 


;


select min(create_date) [earliest date (UTC)]
     , max(create_date) [latest date (UTC)]
     , datediff(d, max(create_date), getdate()) [days ago]
     , coalesce((select max(name) 
                from sys.databases 
                where name like '%_Temp'), 'None') [restoring]
     , (select string_agg(status,', ') 
       from
       (
       select concat(
               count(*), 
               ' refreshed ', 
               datediff(d, create_date, getdate()),
               ' days ago, took ',
               datediff(n, min(create_date),max(create_date)),
               ' minutes'
               ) [Status]
       from sys.databases
       where database_id > 5
       group by datediff(d, create_date, getdate())
       ) data ) [Status of database updates]
from sys.databases
where database_id > 5


select string_agg(status,', ') [Status of database updates]
from
(
select concat(
         count(*), 
         ' refreshed ', 
         datediff(d, create_date, getdate()),
         ' days ago, took ',
         datediff(n, min(create_date),max(create_date)),
         ' minutes'
         ) [Status]
from sys.databases
where database_id > 5
group by datediff(d, create_date, getdate())
) data


select
##cachebreaker?0##
from sys.databases
where database_id > 5

print 'no cache ##bypassCache?true##'

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edited dec 4 22

created may 17 20 rene