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Thread Exclusive access
Fri, Oct 30 2009 4:33 AMPermanent Link

Roy Lambert

NLH Associates

Team Elevate Team Elevate

Is there a list somewhere showing which operations require exclusive access?

Roy Lambert
Fri, Oct 30 2009 8:59 AMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

Roy,

<< Is there a list somewhere showing which operations require exclusive
access? >>

Any operation that modifies the metadata of an object (including its name)
requires exclusive access to that object, or its container in the case of
columns, constraints, indexes, or triggers.  So, any CREATE, ALTER, DROP, or
RENAME will require exclusive access.  With databases, one additional
operation, RESTORE DATABASE, requires exclusive access to the database if
you choose to restore the database catalog also.

--
Tim Young
Elevate Software
www.elevatesoft.com

Fri, Oct 30 2009 10:07 AMPermanent Link

Roy Lambert

NLH Associates

Team Elevate Team Elevate

Tim


How about IMPORT & EXPORT?

Roy Lambert
Tue, Nov 3 2009 7:35 AMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

Roy,

<< How about IMPORT & EXPORT?  >>

No - export uses a read-lock for consistency, and import uses an internal
transaction lock.

--
Tim Young
Elevate Software
www.elevatesoft.com

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