MSSQL - database recovery time remaining

recovery_time_remaining.sql

-- https://www.mssqltips.com/sqlservertip/4832/script-to-find-out-when-sql-server-recovery-will-finish/
DECLARE @DBName VARCHAR(64) = 'DB_NAME_GOES_HERE'

DECLARE @ErrorLog AS TABLE([LogDate] CHAR(24), [ProcessInfo] VARCHAR(64), [TEXT] VARCHAR(MAX))

INSERT INTO @ErrorLog
EXEC master..sp_readerrorlog 0, 1, 'Recovery of database', @DBName

INSERT INTO @ErrorLog
EXEC master..sp_readerrorlog 0, 1, 'Recovery completed', @DBName

SELECT TOP 1
    @DBName AS [DBName]
   ,[LogDate]
   ,CASE
      WHEN SUBSTRING([TEXT],10,1) = 'c'
      THEN '100%'
      ELSE SUBSTRING([TEXT], CHARINDEX(') is ', [TEXT]) + 4,CHARINDEX(' complete (', [TEXT]) - CHARINDEX(') is ', [TEXT]) - 4)
      END AS PercentComplete
   ,CASE
      WHEN SUBSTRING([TEXT],10,1) = 'c'
      THEN 0
      ELSE CAST(SUBSTRING([TEXT], CHARINDEX('approximately', [TEXT]) + 13,CHARINDEX(' seconds remain', [TEXT]) - CHARINDEX('approximately', [TEXT]) - 13) AS FLOAT)/60.0
      END AS MinutesRemaining
   ,CASE
      WHEN SUBSTRING([TEXT],10,1) = 'c'
      THEN 0
      ELSE CAST(SUBSTRING([TEXT], CHARINDEX('approximately', [TEXT]) + 13,CHARINDEX(' seconds remain', [TEXT]) - CHARINDEX('approximately', [TEXT]) - 13) AS FLOAT)/60.0/60.0
      END AS HoursRemaining
   ,[TEXT]
FROM @ErrorLog ORDER BY CAST([LogDate] as datetime) DESC, [MinutesRemaining]