declare @sql nvarchar(max) create table #result (site sy...

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declare @sql nvarchar(max)

create table #result (site sysname
                    , hostname sysname
                    , id integer
                    , name nvarchar(200)
                    , description nvarchar(500)
                    )

select @sql = N'insert into #result' + STRING_AGG(concat(N'
select ''', name ,N''' as site
     , ''',hostname ,N'''
     , id
     , name
     , description
from ', quotename(name), N'.dbo.closereasontypes 
'),N' 
union all')
from (select convert(nvarchar(max),name) name
    -- , convert(nvarchar(max),sitename)  sitename
    -- , meta
    -- , domain
     ,  concat( 
        -- based on an idea from Glorfindel 
        -- https://meta.stackexchange.com/a/321181
        (case sitename
        WHEN 'Audio' THEN 'video'
        WHEN 'Beer' THEN 'alcohol'
        WHEN 'CogSci' THEN 'psychology'
        WHEN 'Garage' THEN 'mechanics'
        WHEN 'Health' THEN 'medicalsciences'
        WHEN 'Moderators' THEN 'communitybuilding'
        WHEN 'Photography' THEN 'photo'
        WHEN 'Programmers' THEN 'softwareengineering'
        WHEN 'Vegetarian' THEN 'vegetarianism'
        WHEN 'Writers' THEN 'writing'
        WHEN 'Br' THEN 'pt'
        WHEN 'Mathoverflow' THEN concat((meta+'.'), sitename)
        ELSE case when sitename = domain then null else sitename end
        end +'.')
        , (case 
           when sitename <> 'mathoverflow' then (meta+'.') 
           else null 
           end) 
        , (case 
           when sitename <> 'mathoverflow' then concat((domain + '.'), 'com') 
           else 'net' 
           end)
        ) hostname
from (
select name
, case parsename(name,1) 
  when 'Meta' then parsename(name,2)
  else parsename(name,1) 
  end [sitename]
, case parsename(name,1) 
  when 'Meta' then 'meta'
  else null
  end [meta]
  , coalesce(parsename(name,3), parsename(name,2)) [domain]
from sys.databases
where database_id > 5
-- (name not like '%.Meta' or name = 'StackExchange.Meta')
) dbs
) dbsall

exec (@sql)



select site, id, name, description
from #result
order by site,id

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