index clarification
From: Sheehan, Jeremy <JEREMY.SHEEHAN_at_nexteraenergy.com>
Date: Thu, 30 Aug 2012 10:36:58 -0400
Message-ID: <C3F905167E081B418BFC63B8668D52FF245EF4806B_at_GOXEXVS03.fplu.fpl.com>
This may seem like a newbie question, but my technical lead told me something yesterday that was contrary my thinking and assumptions on how indexes work.
Date: Thu, 30 Aug 2012 10:36:58 -0400
Message-ID: <C3F905167E081B418BFC63B8668D52FF245EF4806B_at_GOXEXVS03.fplu.fpl.com>
This may seem like a newbie question, but my technical lead told me something yesterday that was contrary my thinking and assumptions on how indexes work.
I was always under the assumption (from studies and readings) that an index contains the values for the indexed columns and a rowid that points back to the table. My technical lead says that indexes do not have a rowid. Is he right? If it doesn't contain the rowid, how does it relate back to the table?
Thanks in advance...
Jeremy
-- http://www.freelists.org/webpage/oracle-lReceived on Thu Aug 30 2012 - 09:36:58 CDT