Re: Convert SAP Oracle Database to IBM DB2 Database??
From: The Boss <usenet_at_No.Spam.Please.invalid>
Date: Sat, 9 Feb 2008 00:34:27 +0100
Message-ID: <47ace704$0$85784$e4fe514c@news.xs4all.nl>
>>> Serge Rielau wrote:
>>> I would but there is a rather substantial problem: Chris Eaton's
>>> understanding of Oracle compression appears to not even include
>>> the marketing materials much less the rather substantial discussion
>>> of the concepts and architecture.
>>> What I'm saying is that it is not just superficial ... from a
>>> technical point-of-view it is mostly incorrect. He needs to learn
>>> how to read the
>>> on-line docs.
Date: Sat, 9 Feb 2008 00:34:27 +0100
Message-ID: <47ace704$0$85784$e4fe514c@news.xs4all.nl>
DA Morgan wrote:
> Serge Rielau wrote: >> DA Morgan wrote:
>>> Serge Rielau wrote:
>>>> DA Morgan wrote: >>>>> Serge Rielau wrote: >>>>>> DA Morgan wrote: >>>>>>> Serge Rielau wrote: >>>>>>>> DA Morgan wrote: >>>>>>>>> My testing of Oracle compression versus DB2 compression >>>>>>>>> indicates that >>>>>>>>> DB2 has some catching up to do. >>>>>>>> Interesting, care to elaborate? Always thriving to improve... >>>>>>>> Given Oracle's DeWitt clause I'll gladly accept any information >>>>>>>> you have by email as to not get you into trouble. >>>>>>> Going to have to disappoint you this time for reasons I am sure >>>>>>> you can >>>>>>> appreciate. >>>>>> So an unsubstantiated claim... Aside you should use DB2 9.5 to >>>>>> compare to Oracle 11 >>>>> >>>>> If I'd used Oracle 11 I would have.
You're still experimenting in 10g after telling the world to move to 11g a.s.a.p.?
>>>>> >>>>> But as long as you are actively participating how about a brief >>>>> technical presentation from the expert explaining to us how >>>>> compression in DB2 differs from that in Oracle 10g and 11g.
You didn't study DB2's compression before comparing it with Oracle's? That makes your claims even more unsubstantiated and even biased.
>>>>> >>>>> Please include also information as to how headers are designed >>>>> and how blocks are filled? Top down as in Informix for both >>>>> Top-Down and Bottom-Up as in Oracle? Or some other means. >>>> http://blogs.ittoolbox.com/database/technology/archives/compression-in-11g-vs-db2-9-21173 >>>> >>>> Maybe we can also take the discussion there.... >>>> >>>> Cheers >>>> Serge >>>
>>> I would but there is a rather substantial problem: Chris Eaton's
>>> understanding of Oracle compression appears to not even include
>>> the marketing materials much less the rather substantial discussion
>>> of the concepts and architecture.
Mark T. from Oracle Marketing seems to disagree with you ...
>>>
>>> What I'm saying is that it is not just superficial ... from a
>>> technical point-of-view it is mostly incorrect. He needs to learn
>>> how to read the
>>> on-line docs.
>> Well the nice thing about BLOGs is the ability to give feedback. >> You are a teacher, no? Teach! >> >> Cheers >> Serge > > Teach someone from IBM? I wouldn't presume to do such a thing. >
So much for your claim of being an "independent instructor" ...
Afraid he will teach you a lesson or two about DB2 compression? (or maybe even Oracle's ...)
-- JeroenReceived on Fri Feb 08 2008 - 17:34:27 CST