Comments on: Oracle Core

By: SLOB: PL/SQL Commit Optimization | flashdba

SLOB: PL/SQL Commit Optimization | flashdba — Mon, 20 May 2013 17:10:14 +0000

[…] sacrificing the D (durability) of ACID compliance. This is best explained by Jonathan Lewis in Chapter 6 of his excellent book Oracle Core – if you haven’t read it, consider putting it at the […]

By: ankitrathi

ankitrathi — Tue, 16 Apr 2013 11:21:12 +0000

Hi Jonathan,

Amazing book on Oracle internals.

It all started couple of months back when I tried interpreting AWR reports to resolve performance issues, that time I felt that one should be really good on Oracle internals to troubleshoot up to the root-cause.

And then I found this book written by you, currently reading Ch-3 and I am quite confident that few end-to-end readings (very hard to comprehend in one go for me) will make me good enough in Oracle database to understand and troubleshoot most of the performance issues.

Thanks again for this wonderful gift to Oracle database community.

By: flashdba

flashdba — Thu, 21 Feb 2013 12:35:14 +0000

In my opinion this is the best book ever written on the subject of Oracle Internals, possibly the best Oracle book full stop. I have no idea how someone with no access to the Oracle source code could come to understand the inner workings so well, but I’m extremely grateful to you for imparting your knowledge to us. I particularly like the chapter on the buffer cache – I read this every so often to try and make my brain see the light. Some days I feel dangerously close to illumination… then Oracle does something unexpected and I realise it’s time for me to get it back off the shelf for another read. Thank you Jonathan…keep up the good work.

By: kisuke1

kisuke1 — Thu, 29 Nov 2012 21:19:26 +0000

Hi Jonathan,
Wonderful book! But I have to ask, could you recommend a ‘primer’ book before reading yours? I want to get the most out of reading this and I feel I am not at this level yet.
Thanks!

By: Jonathan Lewis

Jonathan Lewis — Tue, 18 Sep 2012 11:49:52 +0000

Sagizvi,

On the Apress link above there’s a reference to the MOBI format and, according to a comment further up the page, this works okay on Kindle.
If there’s no specific Kindle version yet then I don’t think there every will be (although I don’t have anything to do with Apress’ marketing decisions.)

By: sagizvi

sagizvi — Tue, 18 Sep 2012 06:52:23 +0000

Are there any plans selling the book as a kindle fornat ?

By: Jonathan Lewis

Jonathan Lewis — Tue, 07 Aug 2012 18:15:12 +0000

Chakra,

I have no idea – I didn’t write the specification or the code – however I will offer a guess.

Since a database can be addressed by many instances (viz: when running RAC) it may be possible to find a condition where you could lose some critical information from one instance if you had two instances running and one of them tried to switch the database archivelog mode. The easiest way to avoid any possible race condition would be to ensure that there are no instances active when you make the change.

By: Chakra

Chakra — Fri, 27 Jul 2012 16:42:46 +0000

Hi,

I have a query, I did not know where to ask to posting here (hoping you will asnwere to my question). I have been asking this question to many people but no luck.

“I would like to know why is it require to put a database in mount stage in order to configure
archivelog mode?
(Internal thoughts would be appriciated)”

By: Database Consolidation Part 4 – Flash Memory Makes The Difference « flashdba

Fri, 20 Jul 2012 12:47:41 +0000

[...] do many other things only very clever people understand (but you can be one of them by reading this excellent book) – all of which adds to response time. But the fundamental point remains, if flash allows for [...]

By: Jonathan Lewis

Jonathan Lewis — Thu, 24 May 2012 10:39:45 +0000

Jean-Michel,

Thank you for buying the book, and for your comments. I have to say, though, that, like Tony Hasler in the previous comment, you have posted this question on the wrong page. Page 42 is in Chapter 3, and there is a page for chapter 3.

I have copied this question to the appropriate page, and will be answering it shortly.