Oracle
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SQLServer equivalent of Flashback
Asked By Abba
23-Feb-10 01:14 AM
Hello,
Oracle has a feature of 'flashback' for a tablespace. This means reverting
back to a snapshot taken on a earlier date. Is there any equivalent feature
in SQLServer? just curious....
tia,
AbbA
HiThere is always backup and restore!
jbellnewspost replied to Abba
23-Feb-10 02:43 AM
Hi
There is always backup and restore! You can also take a snpshot and
revert to the time it was taken
http://msdn.microsoft.com/en-us/library/ms175158.aspx and there are
backup snapshots if you have the hardware support
http://msdn.microsoft.com/en-us/library/ms189548.aspx
John
Hi,If you have enterprise edition you can look at piecemeal restores,
jgurgul replied to Abba
23-Feb-10 03:21 AM
Hi,
If you have enterprise edition you can look at piecemeal restores, which
will enable you to recover the filegroup etc:
http://msdn.microsoft.com/en-us/library/ms177425.aspx
There is also the option of taking database snapshot, which will give you a
readonly point in time instance of the database, which you could revert to,
or copy out data from:
http://msdn.microsoft.com/en-us/library/ms175876.aspx
if you dont have enterprise then you could:
1. Use a backup to retrieve the data and copy it back in
2. Use scripts to repopulate
3. use a 3rd party tool (which could compare with another db, and script
changes. or perhaps a log reader to reconstruct lost data.)
Jon
SQL Server Requesting Backup / Restore Theory Explanation MSSQL backups are odd in that the data and transaction logs are two different backup operations it seems. Normally, when a backup is performed, the data and log file can be archived mirror is exported to an SQL file, and the previous backup data and transaction file is moved to the live area to put together some TSQL for MSSQL 2008 Express for backup, restore to last backup, and restore from failure using a roll-forward from last backup. There is no clear explanation of the backup theory in the docs. It talks about simple, full, restoring term tails exactly is. Thanks! I am sure that the backup and restore rules for whatever other RDBMS products you are you the database as of around the time that the backup finishes. (Actually I think it is as of the start
was written by Joe Celko. If you know the names Date and Codd you should know who you are addressing: Joe Celko. - - Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damorgan@x.washington.edu replace x with u to respond) Puget Sound Oracle Users Group www.psoug.org Not a name I am 22Wikipedia%22+and+%22Joe+Celko%22&btnG = Google+Search - - Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damorgan@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Group www.psoug.org Not necessarily. There are a are top notch programmers that don't know who Chris Date is. There are top notch programmers that don't know top notch" programmers on a 3x5 card. - - Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damorgan@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Group www.psoug.org LOL! Programmers, sure; I know the mainframe area ( IMS and DB2 ) before moving into the oracle area. Real world experience doing complicated designs teaches you a lot of things. Codd and Date were the authors of the texts and mathematical theory that
SQL Server SQLServer equivalent of Flashback Hello, Oracle has a feature of 'flashback' for a tablespace. This means reverting back to a snapshot taken on a earlier date. Is there any equivalent feature in SQLServer? just curious. . . . tia AbbA Hi There is always backup and restore! You can also take a snpshot and revert microsoft.com / en-us / library / ms175158.aspx and there are backup snapshots if you have the hardware support http: / / msdn.microsoft you dont have enterprise then you could: 1. Use a backup to retrieve the data and copy it back in 2 lost data.) Jon keywords: SQLServer, equivalent, of, Flashback description: Hello, Oracle has a feature of 'flashback' for a tablespace. This means reverting back to a snapshot taken on a earlier date. Is there any equivalent fe
DTS package that grabs a number of tables from an Oracle DB, does some scrubbing, updates, and date verification and loads to a SQL Server DB. Most of such a large log file. I tried adding a few "BACKUP LOG DwLoadAreaSQL WITH TRUNCATE_ONLY" statements in the DTS package but bother with log files. You can always re-grab the ORACLE data and re-run your process if you experience any DTS package that grabs a number of tables from an Oracle DB, does some scrubbing, updates, and date verification and
is in FULL recovery model, in addition to doing a BACKUP DATABASE it is also necessary to BACKUP LOG for that database. Only the backup of the transaction log will free log space for reuse to every few minutes. It may be that your log backup is running, but during the nightly exports will need to sqlserver / info_dont_shrink.asp RLF Russell thanksfor the reply, The only backup that I am aware of is our complete server backup (We user ARCSERVE from CA) that is run each night so any type of "backup" that is a feature or facility within SQL server I this DB gets populated with data imported from a different (Oracle) DB. . I think the mechanics hhere is just that a back up ? Dan, If ARCSERVE is also using the SQL Backup Agent, it can do SQL Server backups. Have those responsible backups in their planning. If is strictly an ARCSERVE file backup then the SQL Server databases are not being backed up
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