SQL Server : How to Keep Database Restore History

Recently, one of our DBA restored a database on live server, but with old backup accidently. Later on, we have found that it was hard to detect which backup was actually restored. To check, which backups we have created for database we have a perfect script, which you can find over here and here. But unfortunately no such script found anywhere to get restore history.

Here is a script, we have used to create a job, which will fetch restore related log entries from SQL Server Log and will archive it to a user created history table.

/************************

Script Purpose: To Keep Database Restore Log

Script By : Aasim Abdullah for https://connectsql.blogspot.com

************************/




USE master

GO

CREATE TABLE DatabaseRestoreLog 

(DatabaseName VARCHAR(50), RestoreDate DATETIME, RestoredFrom VARCHAR(500))




GO

/****** Start: Job step script *****/

-- Table variable to hold intermediate data

DECLARE @ReportSQLErrorLogs TABLE

    (

      [log_date] [datetime] NULL,

      [processinfo] [varchar](255) NULL,

      [processtext] [text] NULL

    ) 




DECLARE @NumErrorLogs INT,

    @CurrentLogNum INT




SET @CurrentLogNum = 0




-- Get total number of log files from registry

EXEC master.dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE',

    N'Software\Microsoft\MSSQLServer\MSSQLServer', N'NumErrorLogs',

    @NumErrorLogs OUTPUT




SELECT  @NumErrorLogs = ISNULL(@NumErrorLogs, 6)

 -- NULL in registry entry for Error Log files mean default of 6 value




WHILE @CurrentLogNum < @NumErrorLogs 

    BEGIN

        insert  into @ReportSQLErrorLogs

                exec master..xp_readerrorlog @CurrentLogNum

        PRINT @CurrentLogNum

        SELECT  @CurrentLogNum = @CurrentLogNum + 1

    END




INSERT INTO DatabaseRestoreLog

SELECT  SUBSTRING(processtext, CHARINDEX('base:', processtext, 1) + 5,

                  CHARINDEX(',', processtext, 0) - ( CHARINDEX('base:', processtext, 0) )

                  - 5), log_date,

            SUBSTRING(processtext, CHARINDEX(': {''', processtext, 1) + 4,

                  CHARINDEX('''})', processtext, 0) - ( CHARINDEX(': {''', processtext, 0) )- 4)      

FROM    @ReportSQLErrorLogs

WHERE   processtext LIKE 'Database was restored%'

--For last 24 hours

AND DATEDIFF(HH,log_date,GETDATE()) <=24

ORDER BY log_date DESC




/****** End: Job step script *****/

view raw DatabaseRestoreLog.sql This Gist brought to you by GitHub.

Output of history table will be as following.