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TRUNCATE TABLE and ROLLBACK TRAN


TRUNCATE TABLE and ROLLBACK TRAN

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DBA_Dom
DBA_Dom
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Nice and simple. Thanks.
Evil Kraig F
Evil Kraig F
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My sincere apologies to those of you who have done counter-myth articles of this nature. I meant to say no OFFICIAL documentation on recovery mode associations, but there are blogs out there that discuss Truncate Rollbacks. Apparently I faux pas'd when I gave it to Steve. Apologies to y'alls fine work.

Thanks for all the well-wishes. And yes, the distribution is disturbing.


- Craig Farrell

Never stop learning, even if it hurts. Ego bruises are practically mandatory as you learn unless you've never risked enough to make a mistake.

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Paul White
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GilaMonster (2/6/2012)
Is it bad form, if you create a QotD, to list your own article as a reference?

I hope not, since I have done this a couple of times. That said, I found two other (non-official, but well-regarded) references and listed them before my own.



Paul White
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Andre Guerreiro
Andre Guerreiro
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Thanks to Craig for the question and Paul for the link to Kalen's article.
It's really good to know that SQL Server will exclusively lock the pages that were truncated until the transaction has ended, so no inconsistent reallocations will occur.

Also about Oracle: why would they create a restriction for the TRUNCATE TABLE in later versions when in version 7 the command could be rolled back?

An excellent QoTD.

Best regards,

Andre Guerreiro Neto

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David Burrows
David Burrows
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GilaMonster (2/6/2012)
Given the distribution of answers, I'm considering a followup question - "does recovery model ever affect the ability to rollback transactions?" because it appears way too many people don't understand what recovery models do.


Or maybe create MotD (Myth of the Day) :-D


Far away is close at hand in the images of elsewhere.

Anon.


Revenant
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David Burrows (2/8/2012)
GilaMonster (2/6/2012)
Given the distribution of answers, I'm considering a followup question - "does recovery model ever affect the ability to rollback transactions?" because it appears way too many people don't understand what recovery models do.


Or maybe create MotD (Myth of the Day) :-D

They seem to pop up on their own, without anyone really trying.
Tom Thomson
Tom Thomson
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GilaMonster (2/6/2012)
Is it bad form, if you create a QotD, to list your own article as a reference?

depends who does it. It won't be bad form if you do it.

Tom

Britt Cluff
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Good question. I missed it but learned something.

http://brittcluff.blogspot.com/
Kwex
Kwex
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Good question ... thanks!
Jamie-2229
Jamie-2229
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Nice to test and show answer as absolute.

Jamie
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