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Kevin Loney, the noted Oracle author recently presented some studies he did on this issue at our TCOUG meeting. In a nutshell, his results were:
My apologies to Kevin if I have misrepresented his findings. He presented
much more analysis and I really appreciated his work. I look forward to
their inclusion in a future book.
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com
-----Original Message-----
Sent: Tuesday, December 11, 2001 9:25 AM
To: Multiple recipients of list ORACLE-L
Well ...
According to a document on Metalink .. it is pretty safe to assume the cost of a DML action on an index as 3 times of that of on the table. So, if inserting one record costs you one unit, on your table with 15 indexes it would be
(1 * 1 table) + (3 * 15 indexes) = 46 units.
And this is for each row ...
HTH
Raj
QOTD: Any clod can have facts, but having an opinion is an art!
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: DENNIS WILLIAMS INET: DWILLIAMS_at_LIFETOUCH.COM Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-LReceived on Wed Dec 12 2001 - 16:06:33 CST
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