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TRUNCATE TABLE and ROLLBACK TRAN


TRUNCATE TABLE and ROLLBACK TRAN

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Evil Kraig F
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Comments posted to this topic are about the item TRUNCATE TABLE and ROLLBACK TRAN


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Nice question - good to know my memory is not failing me

If everything seems to be going well, you have obviously overlooked something.

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Paul White
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Good question; there are a number of links you could have included in the explanation, but one of my favourites is this by Kalen Delaney:

http://sqlblog.com/blogs/kalen_delaney/archive/2010/10/12/tsql-tuesday-11-rolling-back-truncate-table.aspx



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Koen Verbeeck
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Easy one, thanks to Paul Randals DBA Myth A Day. :-)


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Thanks for the question, but please explain why:


No, you can never rollback a transaction with a TRUNCATE TABLE statement, regardless of recovery mode


isn't also correct?

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Explanation
there is no documentation on a non-existant concern

I disagree. Here is the link: http://msdn.microsoft.com/en-us/library/ms191544.aspx

Transact-SQL Statements Allowed in Transactions

You can use all Transact-SQL statements in an explicit transaction, except for the following statements:
ALTER DATABASE
ALTER FULLTEXT CATALOG
ALTER FULLTEXT INDEX
BACKUP
CREATE DATABASE
CREATE FULLTEXT CATALOG
CREATE FULLTEXT INDEX
DROP DATABASE
DROP FULLTEXT CATALOG
DROP FULLTEXT INDEX
RECONFIGURE
RESTORE


...
UPDATE STATISTICS can be used inside an explicit transaction. However, UPDATE STATISTICS commits independently of the enclosing transaction and cannot be rolled back.

Based on this article, one can conclude that a TRUNCATE TABLE statement can be rolled back.
Koen Verbeeck
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Henrico Bekker (2/5/2012)
Thanks for the question, but please explain why:


No, you can never rollback a transaction with a TRUNCATE TABLE statement, regardless of recovery mode


isn't also correct?


Because you can rollback a transaction with a TRUNCATE TABLE statement?


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Koen Verbeeck (2/5/2012)
Henrico Bekker (2/5/2012)
Thanks for the question, but please explain why:


No, you can never rollback a transaction with a TRUNCATE TABLE statement, regardless of recovery mode


isn't also correct?


Because you can rollback a transaction with a TRUNCATE TABLE statement?


Tsk, thanks Koen....
Slow Monday morning for me....ignore me for the day ...

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Koen Verbeeck
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Henrico Bekker (2/6/2012)
Koen Verbeeck (2/5/2012)
Henrico Bekker (2/5/2012)
Thanks for the question, but please explain why:


No, you can never rollback a transaction with a TRUNCATE TABLE statement, regardless of recovery mode


isn't also correct?


Because you can rollback a transaction with a TRUNCATE TABLE statement?


Tsk, thanks Koen....
Slow Monday morning for me....ignore me for the day ...


Okidoki :-D


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Stewart "Arturius" Campbell
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Thanks for the Back-to-Basics question, Craig.

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