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Full SQL server backup...Does it truncate transaction logs?

Created: 31 May 2011 | 5 comments
rico.tayag@newbalance.com's picture
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Would a full SQL backups truncate transaction logs? 

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Marianne van den Berg's picture
31
May
2011
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It depends on whether it is

It depends on whether it is specified in the backup script and on whether the database is configured to do so. The database recovery strategy determines whether the transaction log is truncated or not.

See “Recovery strategies” in NBU for SQL Server Administrator's Guide  http://www.symantec.com/docs/TECH127055

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows.
Handy NBU links

Dishant's picture
01
Jun
2011
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No you have to defined that

No you have to defined that in the script

Thanks and Regards,
Dishant Dhokia

wr's picture
01
Jun
2011
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per the Admin Guide

Transaction log backup options

 

Back up transaction log, but do not truncate it

Back up a transaction log without truncating it.

Truncate transaction log, but don't back it up

(SQL Server 2000) Transaction log is truncated, but is not backed up.

Back up and restore tail log

(SQL Server 2005 or later) Backup and recover the tail log from disk.

good Will backing-up

Marianne van den Berg's picture
01
Jun
2011
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You missed this section in

You missed this section in the manual, Bill:

The following options are available when you have chosen a transaction log backup type:

Back up and truncate transaction log
Back up the transaction log and remove the inactive part of the transaction log.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows.
Handy NBU links

wr's picture
02
Jun
2011
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oops

looks like my post was truncated  blush

good Will backing-up