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Restart Log Backups


Restart Log Backups

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paul.knibbs
paul.knibbs
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I'm a bit annoyed with myself...I've read the linked article before, but I went ahead and clicked the "Full backup" option simply because that's what I would do in that situation, regardless of what's possible! Should have read the possible answers more carefully before clicking.
Mike Hays
Mike Hays
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Ouch!!! Got me!!! - Excellent question, learned something new.
Dana Medley
Dana Medley
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I jumped the gun on this one and it seems I'm not alone in my actions. I just saw the first answer and was like "of course that's what you would do!" and then (X) incorrect. Sad Excellent question Steve. I should have read all the available answers, but that first one just looked to tempting.



Everything is awesome!
Rich Mechaber
Rich Mechaber
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Got it wrong for the best possible reason: I learned something.

Like many others, I thought a FULL backup was required to re-initiate the log chain, probably because that's what most recommendations say, following a switch of Full-to-Simple-to-Full recovery modes.

Here's an example from a SQL MVP (http://www.petri.co.il/sql-server-recovery-models.htm):
...if you’re in full mode and you want to truncate the log by switching to simple mode you’re free to do that. However, if you want to switch back to full mode and start taking log backups again, you’ll have to take a full backup before you can do that.


Great question, Steve!

Rich
M&M
M&M
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Good question, got this wrong though. Nice to have a myth busted.

M&M
Luis Cazares
Luis Cazares
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I was tempted with the first answer as it seemed correct. But a little bit of logic indicated me that there's no reason for the database backups to be incomplete so that it would be necessary to do a full backup. For the contrary, the log wouldn't be reliable after changing the recovery model from full to simple and back to full.

Nice question, I'm glad to have read all the answers before making a choice.


Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?


How to post data/code on a forum to get the best help: Option 1 / Option 2
chrisfradenburg
chrisfradenburg
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I actually just dealt with this in a slightly different way. We're doing a purge on a large DB and the app owner wanted a quick way to roll back and re-establish the log chain if anything went wrong. The decision was to take a snapshot, restore from that if there was an issue, and then do a diff. I actually wrote an article about it but haven't submitted it yet because it's still being reviewed by someone else before I send it in.
OzYbOi d(-_-)b
OzYbOi d(-_-)b
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Thanks Steve.
SQLRNNR
SQLRNNR
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Good question Steve.



Jason AKA CirqueDeSQLeil
I have given a name to my pain...
MCM SQL Server, MVP


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Lon-860191
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Definitely a gotcha!
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