Significant Network accounts of high-reputation users

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Reference: https://stackoverflow.com/q/52355268/331508 . For whatever site this query is run against (See the `Switch sites:` control just above the results table), finds users with MinMasterSiteRep reputation (default 200K). Then it lists their network accounts that meet the MinRep requirement (default 200). Note that 200 rep on a site is the cutoff for inclusion into Stack Exchange flair.

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-- MinMasterSiteRep: User's must have this much rep on whichever site this query is run against
-- MinRep: User's must have this much rep on all other sites

CREATE TABLE #UsersOfInterest (
    AccountId       INT NOT NULL
    , Reputation    INT
    , UserId        INT
    , PRIMARY KEY (AccountId)
)
INSERT INTO  #UsersOfInterest
    SELECT  u.AccountId, u.Reputation, u.Id
    FROM    Users u
    Where   u.Reputation > ##MinMasterSiteRep:INT?200000##

CREATE TABLE #AllSiteResults (
      [Master Rep]          INT
      , [Mstr UsrId]        NVARCHAR(777)
      , AccountId           NVARCHAR(777)
      , [Site name]         NVARCHAR(777)
      , [Username on site]  NVARCHAR(777)
      , [Rep]               INT
      , [# Ans]             INT
      , [# Qst]             INT
)

DECLARE @seDbName       AS NVARCHAR(777)
DECLARE @seSiteURL      AS NVARCHAR(777)
DECLARE @sitePrettyName AS NVARCHAR(777)
DECLARE @seSiteQuery    AS NVARCHAR(max)

DECLARE seSites_crsr CURSOR FOR
WITH dbsAndDomainNames AS (
    SELECT      dbL.dbName
                , STRING_AGG (dbL.domainPieces, '.')    AS siteDomain
    FROM (
        SELECT      TOP 50000   -- Never be that many sites and TOP is needed for order by, below
                    name        AS dbName
                    , value     AS domainPieces
                    , row_number ()  OVER (ORDER BY (SELECT 0)) AS [rowN]
        FROM        sys.databases
        CROSS APPLY STRING_SPLIT (name, '.')
        WHERE       CASE    WHEN state_desc = 'ONLINE'
                            THEN OBJECT_ID (QUOTENAME (name) + '.[dbo].[PostNotices]', 'U') -- Pick a table unique to SE data
                    END
                    IS NOT NULL
        ORDER BY    dbName, [rowN] DESC
    ) AS dbL
    GROUP BY    dbL.dbName
)
SELECT      REPLACE (REPLACE (dadn.dbName, 'StackExchange.', ''), '.', ' ' )  AS [Site Name]
            , dadn.dbName
            , CASE  -- See https://meta.stackexchange.com/q/215071
                    WHEN dadn.dbName = 'StackExchange.Mathoverflow.Meta'
                    THEN 'https://meta.mathoverflow.net/'
                    -- Some AVP/Audio/Video/Sound kerfuffle?
                    WHEN dadn.dbName = 'StackExchange.Audio'
                    THEN 'https://video.stackexchange.com/'
                    -- Ditto
                    WHEN dadn.dbName = 'StackExchange.Audio.Meta'
                    THEN 'https://video.meta.stackexchange.com/'
                    -- Normal site
                    ELSE 'https://' + LOWER (siteDomain) + '.com/'
            END AS siteURL
FROM        dbsAndDomainNames dadn
WHERE       (dadn.dbName = 'StackExchange.Meta'  OR  dadn.dbName NOT LIKE '%Meta%')

-- Step through cursor
OPEN    seSites_crsr
FETCH   NEXT FROM seSites_crsr INTO @sitePrettyName, @seDbName, @seSiteURL
WHILE   @@FETCH_STATUS = 0
BEGIN
    SET @seSiteQuery = '
        USE [' + @seDbName + ']

        INSERT INTO #AllSiteResults
            SELECT
                        uoi.Reputation                                                                                  AS [Master Rep]
                        , ''site://u/'' + CAST(uoi.UserId AS NVARCHAR(88)) + ''|'' + CAST(uoi.UserId AS NVARCHAR(88))   AS [Mstr UsrId]
                        , [AccountId] = ''https://stackexchange.com/users/'' + CAST(u.AccountId AS NVARCHAR(88)) + ''?tab=accounts|'' + CAST(u.AccountId AS NVARCHAR(88))
                        , ''' + @sitePrettyName + '''                                                                   AS [Site name]
                        , ''' + @seSiteURL + ''' + ''u/'' + CAST(u.Id AS NVARCHAR(88)) + ''|'' + u.DisplayName          AS [Username on site]
                        , u.Reputation                                                                                  AS [Rep]
                        , (SELECT COUNT(q.Id)  FROM Posts q  WHERE q.OwnerUserId = u.Id  AND q.PostTypeId = 2)          AS [# Ans]
                        , (SELECT COUNT(q.Id)  FROM Posts q  WHERE q.OwnerUserId = u.Id  AND q.PostTypeId = 1)          AS [# Qst]
            FROM        #UsersOfInterest uoi
            INNER JOIN  Users u                ON uoi.AccountId = u.AccountId
            WHERE       u.Reputation > ##MinRep:INT?200##
    '
    EXEC sp_executesql @seSiteQuery

    FETCH NEXT FROM seSites_crsr INTO @sitePrettyName, @seDbName, @seSiteURL
END
CLOSE       seSites_crsr
DEALLOCATE  seSites_crsr

SELECT      *
FROM        #AllSiteResults
ORDER BY    [Master Rep] DESC, AccountId, [Rep] DESC

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