Full And Log Backups. Overwrite? Or Not?
Apr 27, 2001
I have daily scheduled full backups of each database and log backups scheduled for every 2 hours. My question is should they be scheduled for overwriting or appending? I have always had them set as overwrite, but I don't know if that is correct? Any recommendations would be appreciated
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Nov 15, 2015
The space allocated to the Log in question is 180 GB. During this time period I was running TLog backups every 5 minutes, yet the log continued to chew through to 80 GB used, even after the process was complete and a final TLog backup had been taken. It continued to stay very large until the Full backup was complete -- or something else that I'm unaware of completed. Like every other DBA I typically take a TLog backup to shrink the log, but what appeared to be the case here was the Full completed and it released the used log space. All said, will Transaction Log backups not free up the log during Full backups?
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Jan 9, 2007
Error with SSIS FTP download task:
How to recreate the error:
Download a file using the task.
Go to the file in Windows Exploder and Open the file in notepad.
Copy the last line of text and paste in a few extra rows at the bottom. So if you had 100 rows, you'll now have 103 rows.
Save the file.
Go back to the task and make sure you have "overwrite destination" set to True.
Execute the task.
Go back to the file and look at the bottom of the file. You'll see the same 3 extra rows you pasted in there.
That is not how it should work if it was supposed to be released like that.
Are there any patches that fix this error?
Ryan
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Jan 11, 2001
PLEASE HELP...
WE ARE DOWNLOADING THE BACKUP FILE FROM OTHER BRANCH OFFICE AND THE FILE SIZE IS GROWING LIKE HELL SO I AM CHANGING THE BACKUP POLICY TO DOWNLOAD THE DIFFERENTIAL BACKUP FILES EVERYDAY. BUT EVEN THE FILE SIZE GROWS DAY BY DAY UNTILL WE TAKE THE FULL BACKUP THERE. SO I WANT TO TAKE A DIIFERNETIAL BACKUP AND THEN IMMIDIATELY A FULL BACKUP AT THE REMOTE SERVER END. SO MY NEXT DIFFERNTIAL BACKUP WILL HAVE THE DATA OF ONLY PREVIOUS DAY.
FOR THIS I AM SCHEDULING A JOB WHICH FIRST TAKES A DIFFERENTIAL BACKUP AND THEN IMMIDIATELY FULL BACKUP EVERYDAY AT 12.00AM.
BUT I HAVE A CONCERN.. WHILE TAKING THE DIFFERENTIAL BACKUP ANY TRANSACTIONS THAT ARE TO BE COMMITED WILL NOT COMMIT UNTIL THE DIFFERENTIAL BACKUP COMPLETES. BUT IMMIDIATELY I AM STARTING FULL BACKUP. IS THERE ANY CHANCE THAT A TRANSACTION GETTING COMMITTED IN BETWEEN THESE TWO STEPS. IF SO IS THERE ANY WAY .. NOT RELEASE THE DATABASE UNTILL THESE 2 BACKUPS ARE COMPLETED?? I AM RUNNING IT AS A JOB..
ANY SUGGESTION??
THANKS IN ADVANCE.. :-)
KUMAR
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Mar 28, 2007
Does the full and differential backups have to be in the same location or can I do a once a week full backup on one drive and everyday differential backups on a different drive?
Thanks
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Jun 12, 2006
Has anyone seen this before?
Every Sunday morning (a different time each week) there is a full backup created for every database on the server. The backup is not a scheduled backup from any maintenance plan or SQL Agent job. The backup set is unrestorable and has a strange name in the format of 'DBNAME_00_12c95fb7_399d_41ce_9a0d_b5728b6a00ba_'
Because this backup is listed as the last full backup and will not restore, it is causing a problem with our disaster recovery plans as nothing will restore from this point forward to the next full backup.
Does anyone know how a backup record like this can get created, and/or how to find the source. The backups are listed in the backupsets table in msdb - are there other system tables that may hold some clues as to the source of these backups?
Any help or direction would be appreciated.
Thanks
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Oct 23, 2015
I make two full backups on Oct 1 and Oct 10. I want to restore the server to a state in Oct 5. So I just do as follows:
1.Perform a transaction log backup on the server on Oct 23. I have never backup transaction log in the past.
2. Restore the server with Oct 1 full backup with NORECOVERY option.
3.Try to restore to the point at Oct 5 12:00, with the transaction log.
But the restore fails and SQL Server said the transaction log does not contain the point. The point is too early. Why? Also my .LDF file is about 13G, but the transaction log backup is only 200MB. Why?
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Apr 30, 2008
In what scenario – diff and full backups have same size? My guess is excessive fragmentation, any thoughts?
------------------------
I think, therefore I am - Rene Descartes
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Jan 14, 2008
But i have one issue bothering me, it will be great if someone can help me out on this
1. I take full backup on Monday 8 pm which ends at 9.30 PM
2. Diff Backup starts at 10 PM every 2 hrs till Tuesday 7.59 PM
3. Transactional Log backup is happening every 10 min till tueday 7.59 PM
Now when i restore it in the same order i get error that Log in the set is too late to apply. I have recemmonded by team to stop log backup on the time they start full backups and take transactional log backup only after differentials are restored. Now is this a correct suggestion???
Also appendin the differential backup is a good idea or overwriting them is a better approach if Database is backedup every night and Differential occurs every 2 hrs.
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Mar 21, 2008
I am running a full backup quarterly using "with init" to overwrite the existing file if it is still on the server. Then I run a differential back weekly using "with init". Finally I run a transaction log backup nightly using "with init".
My question is should I be using "with init" for the transaction log backup or allow it to accumulate until the next differential backup?
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May 12, 2008
Hi sql server experts.
This is a beginners question.
Let's say, I run a full backup at 4:30 am it takes usually 35 minutes to finish.
I want to schedule a differential backup to run every hour.
Should I start this job at 5:10 after the full backup finishes? or it doesn't matter?
I am confused about timing.
Let's say my full back up takes 1 hour to finish, that means that when the differential backup runs the full backup will be still running, so in case I need to restore the database, can I use this differential from 5:10 or the differential from 6:10.
Same issue with the transactional, the job runs every 30 minutes, should I started after the differential is done?
I am so confused, what happens with the backups jobs that run while other backups are running?
Is this something that should never happen.
Please advise.
Thanks
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Mar 16, 2001
Hi All,
Is there a way to suppress or re-direct the messages that result from a tran. log dump? We're running a tran. log dump every 15 minutes in prod. and the errorlog is really cumbersome to look at.
(In another RDBMS I worked with all backup messages went to a separate error/message log.)
TIA!
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May 8, 2014
We have a SQL 2012 server instance that has log shipping set up to another SQL 2012 server to provide a warm standby for a forward facing application. The databases on the primary server occasionally are required to be backed up and restored to a development environment, completely different server. Is there a way to schedule full backups with log shipping enabled?
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Aug 4, 2015
I am in plan to implement following for backup of one of our database Enable Full recovery mode
1- Create full backup nightly
2- Create transaction log backup after every 25 min
as I am taking full backup every night, I think I can remove transaction log file backups at the time of full backup, as we can apply transaction log backup over full backup.My question is regarding removal of transaction log backups.
-Should I remove all transaction log backups and then execute full backup?
-Should I execute full backup and remove all transaction log backup older than 24Hrs ?
-Do I have to consider SCN or related info before deleting any transaction log backup ?
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Oct 23, 2015
I make two full backups on Oct 1 and Oct 10. I want to restore the server to a state in Oct 5. So I just do as follows:
Perform a transaction log backup on the server on Oct 23. I have never backup transaction log in the past. Restore the server with Oct 1 full backup with NORECOVERY option.Try to restore to the point at Oct 5 12:00, with the transaction log.
But the restore fails and SQL Server said the transaction log does not contain the point. The point is too early. Why? Also my .LDF file is about 13G, but the transaction log backup is only 200MB. Why?
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Oct 23, 2015
I make two full backups on Oct 1 and Oct 10. I want to restore the server to a state in Oct 5. So I just do as follows:
1.Perform a transaction log backup on the server on Oct 23. I have never backup transaction log in the past.
2. Restore the server with Oct 1 full backup with NORECOVERY option.
3.Try to restore to the point at Oct 5 12:00, with the transaction log.
But the restore fails and SQL Server said the transaction log does not contain the point. The point is too early. Why? Also my .LDF file is about 13G, but the transaction log backup is only 200MB. Why?
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Dec 4, 2007
Afternoon,
I have a few Log Shipped DBs that are working great.
Currently they are set to fire off every 15 minutes 24/7.
My question is this ... I need to get FULL backups of the source DBs in order to restore them on certain Dev boxes.
If I were to execute the full backup on one of these Log Shipped DBs ... how would it affect the log shipping process?
Is there a special method to accomplish this?
As a side note, what would be some concerns/issues if in being able to create the FULL backups and not interupt log shipping, I were to create the backup using a 3rd party tool like Quest LiteSpeed?
I sure wish we were on Enterprise, then I could create a mirror and then snapshot off it to create my backups BUT ... that is not the case as we stand today.
Thanks
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Apr 20, 2015
I am setting up Availability Groups and I want to use the secondary replica to perform the full copy_only backups to reduce the load on the primary replica.But what is the best way to check for successful full backups on Availability Group databases?
Previously I could check the system table msdb.dbo.backupset but this is not available for copy_only backups.So I wonder how people are monitoring that their full backups have been successful?
Do you just check that the SQL Agent job that runs the backup was successful?
Or do you search the SQL Server Error Log for entries like "Database backed up. Database: xxx" where database xxx is in an Availability Group?
Or is there a better method?
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Feb 28, 2008
Regarding backups.
The first available time to do a full backup is at 11:00pm which also applies to diff. backups.
How often does the trans. logs need a back up?
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Apr 26, 2007
I created a plan for a backup. This first truncates the log and after backups the data with overwrite mode and after backups the transaction log with overwrite mode.
The process is using different backup devices for the data and log backups.
The first 2 step is success (truncate and data backup) but in the last step the backup process don't overwrite the backup device. Why ?
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Feb 19, 2015
Using Ola Hallengren's scripts I do a full backup of a database on a Sunday. Then differential backups every 6 hours and log backups every hour. I would like to keep a full week of backups based off the full backup done on Sunday. Is there a way for me to clear out the diff and log folders after the successful full backup on Sunday nights?
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Jul 20, 2005
I wasn't able to figure out the vocab to search for this on usenet.I'm sure it's an easy solution, but I have no experience with SQLServer:Situation:tbl_CompanyDatais a 1735 x 20 table with a CompanyID key in the first columntbl_MergedCompanyDatais a 1735 x 20 table imported from Excel. We found it much easier toenter data into an Excel file.Problem:Keep the CompanyID field in tbl_CompanyData, but replace all the other19 rows with data from tbl_MergedCompanyData, which contains all thetbl_CompanyData PLUS new data that users filled in. At present, therows don't match up, but I suppose I could pre-sort the tables.Preferrably, any solution would be smart enough to find CompanyID N intbl_MergedCompanyData and replace the data in the fifth column intbl_CompanyData where CompanyID is N with data from the fifth columnin tbl_MergedCompanyData.Any thoughts would be appreciated. Please let me know if I canclarify my problem.Thank you,Ryan
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May 20, 2006
Hi :)
I have a website that uses SqlExpress ...on it i have a database that was working ok ...until i made a few modifications to the database (had a few rows).
I have upload the database (only the .mdf file) to the app_data folder ...but now i get this message :
One or more files do not match the primary file of the database. If you are attempting to attach a database, retry the operation with the correct files. If this is an existing database, the file may be corrupted and should be restored from a backup.Cannot open database "ArtWork" requested by the login. The login failed.Login failed for user 'NT AUTHORITYNETWORK SERVICE'.Log file 'c:xxxxxxxxxxxxxxxxxxxApp_DataArtWork_log.LDF' does not match the primary file. It may be from a different database or the log may have been rebuilt previously.
I try to delete the .LDF file but it gives me access denied ...i cheched the permissions for the file and everything is ok
How can i solve this??
Thanks and Cheers
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Apr 12, 2008
I am trying to generate a fixed column text file with a timestamp. the file will be exported to d:current folder
how can I overwrite an existing file with different timestamp and move the existing file to d:archivefolder ?
Can you show me some examples?
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Apr 20, 2007
Hello,
Is there are a way to set up a DTS package
to export data to an Excel format, overwriting or deleting the existing Excel file.
Thank you,
Y
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Oct 19, 2007
I have to created a Maintenance Plan in SQL 2005 to take the backup of 5 different DB at 2AM everyday. Each DB has its own sub-directory and backup file The total DB size is 35GB. I need to overwrite the exsisting backup instead of having new backup everytime.
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Jul 28, 2006
After logging is configured in SSIS package, it seems that after each execution the output is appended to the log file (we are talking about log provider for text files in this case). As a result the file just keeps on growing. I would like to overwrite old information with each run, but I can't find where to configure this. Anybody knows?
Thank you!
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Apr 10, 2008
Hi all I was wondering how to do an ALTER command on a Table but without specifying Column Names but rather attempting to overwrite the Table itself with the new fields specified? For instance if I have Table_1 consisting of the following fields:
IDFirstNameSurname
Then use the following ALTER command:
Code Snippet
ALTER Table Table_1
(
ID Int,
FirstName VarChar(50)
)
This would then drop Surname from the Table and leave only ID and FirstName inside it. Is this possible? I have been searching google but can't seem to find what I am looking for.
Thank for comments + suggestions. Regards, Onam.
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Jul 19, 2007
First off, I am not a DBA, not even remotely close. Anywho, I have been given the task of figuring out how to import from a comma delimited text file into 2 columns of an existing database. The task is as follows:
- A daily text file is created by a Unix DB and placed on a folder local to the SQL Server.
- I am to take this file and import into an existing MS SQL2005 DB that has 3 columns.
- AccountID, AccountName, DateRecordCreated
- The imported data has to overwrite all existing SQL DB data.
- This is to run automated on a daily schedule.
Being a SysAdmin, this sounds super simple to do but I have wasted 2 full days in trying to figure out how to make this happen using SSIS. All I want to know is if I am in the right track in focusing on SSIS for a solution. Any additional How To's would be greatly appreciated. BTW, the text file looks something like this...
AccountID,AccountName
A123456,Joe Smith, M.D.
A234567,John H. Dude,M.D.
Thanx much
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Mar 19, 2007
Good Morning, I need some assistance with SQL Server 2000 Importing Data.
When I import data from a text on a routine basis, three things must happen:
1. New records identified by primary key get appended to table.
2. Exisiting records identified by primary key get overwritten with new/(updated) data.
3. All other existing records are left alone.
Does anyone know how to Import Records with the following the criteria above? It cannot insert duplicate primary keys by nature, so it must overwrite those records!
This is being built into a DTS Package, but I need to get over this obsticle! Thanks for any guidance!
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Feb 13, 2014
Aim – when Fee_Code = ‘42B’ and month_end_date =>2013-02-01 change the Fee_Code from “42B” to “42C”. Anything prior to 2013-02-01 the fee_code needs to remain the same
I can do this as a case statement(as seen below) but this creates a new column. How can i overwrite this logic in the fee_code column ?My query is
SELECT
FDMSAccountNo,
Fee_Code,
month_end_date,
sum(Fact_Fee_History.Retail_amount) as 'PCI',
Case
when
fee_code = '42B' and (month_end_date >='2013-02-01') then '42C' end as Test
from Fact_Fee_History
[code]....
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Jul 12, 2007
anyone know how you can do this?
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Oct 24, 2007
Hi,
i have SSRS project which has 40 reports and one datasource. I have deployed my reports to report server and tested. every thing is working fine. but recently when i made changes to the reports and tried to deploy them, they are not getting overwritten. although the data source is getting overwritten as i set the Overwrite property to true. can any one help me?
Thanks,
Srik
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