Log Backup

hi experts

i am reading about Transaction Log Backup Strategies:
what's the mean?
.Enables point-in-time recovery
enrique_aeoAsked:
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Pawan KumarConnect With a Mentor Database ExpertCommented:
For T-log backup I suggest you read this- <<Kimberley & Brent's Advice>>
 
http://www.sqlskills.com/blogs/kimberly/database-maintenance-best-practices-part-iii-transaction-log-maintenance/
https://www.brentozar.com/archive/2014/02/back-transaction-logs-every-minute-yes-really/

Enables point-in-time recovery
It means you can recover the data up to certain point, now that point can be up to the failure or the user can also specify the time.

1. Restore to the Point of Failure  
2. Restore to a Point in Time

1 . Restore to the Point of Failure

RESTORE LOG PawanDB FROM <backup_device_name> 
WITH NORECOVERY;

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Ref more at - https://technet.microsoft.com/en-us/library/ms179451(v=sql.105).aspx

2. Restore to a Point in Time

RESTORE LOG PawanDB
FROM PawanBackups
WITH FILE=4, NORECOVERY, STOPAT = 'Mar 15, 2025 11:00 AM';

Open in new window


Ref more at - https://technet.microsoft.com/en-us/library/ms175093(v=sql.105).aspx

Hope it helps !!
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Kim RyanConnect With a Mentor IT ConsultantCommented:
It means you can restore the database to it's status at a certain time you specify (the point in time). For example, if you know you system was stable at 7:00 am but some corruption occurred after that but you don't know exactly when, then restore it to how it was at 7 am.
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