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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Execution time for export/import vs. alter table move tablesp
Dennis,
Cost-justifying bringing in an outside resource to perform the required QA
test
cycle. There is no money or resource currently to do that. Otherwise,
we'll have
to wait until next year when they can bundle the QA effort for the Oracle
upgrade
in with the next release cycle of our product.
It's kind of weird that the QA schedule and priorities here drive almost
all of
the other schedules and projects.
Thanks for your reply. On a personal note, are you at the Lifetouch in Eden Prairie?
Cherie Machler
Oracle DBA
Gelco Information Network
DENNIS WILLIAMS
<DWILLIAMS_at_LIFE To: Multiple recipients of list ORACLE-L
<ORACLE-L_at_fatcity.com>
TOUCH.COM> cc:
Sent by: Subject: RE: Execution time for
export/import vs. alter table move
root_at_fatcity.co tablesp
m
10/26/01 03:10
PM
Please respond
to ORACLE-L
Just listened to a talk by Kevin Loney (noted Oracle author). Table-table
data movement (alter table move) is the fastest way to move data in Oracle.
How much faster depends on your system. My experience says twice as fast is
a safe guess. Cost justifying an upgrade?? What ogres do you work for?
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com
-----Original Message-----
Sent: Friday, October 26, 2001 2:55 PM
To: Multiple recipients of list ORACLE-L
tablespace command
I am doing a cost justification for upgrading a data warehouse from 8.0.4 to 8.1.7.
I need to submit it today and don't have time to do a test on a very large table.
Does anyone have anecdotal evidence or experience in the time difference required to reorg a tablespace using the export/import table method versus alter table move to a new tablespace method?
Thanks for any time quotes you can provide. I'm especially interested in very large tables and tablespaces.
Thanks,
Cherie Machler
Oracle DBA
Gelco Information Network
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