Re: foundations of relational theory?

Bob Badour wrote:

>"Lauri Pietarinen" <lauri.pietarinen_at_atbusiness.com> wrote in message
>news:bnh5m7$7ij$1_at_nyytiset.pp.htv.fi...
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>>Bob Badour wrote:
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>>>While I have observed the phenomenon of application developers looking at
>>>data management as foreign, I have not observed the converse. The
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>relational
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>>>answer to mismatch is to increase the level of abstraction of the
>>>application development environment to the level of the dbms.
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>>>
>>Not true. See this quote from Date:
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>>“A quick and admittedly not very scientific survey of a whole shelf load
>>of database textbooks--37 in all, to be exact, including essentially all
>>of the best-known ones--reveals the following:
>>· Only one book had an entire chapter devoted to the topic of integrity
>>(and even there I had severe reservations about the quality of the
>>treatment).
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>I don't see how the quoted text is relevant to the issue of whether database
>managers look at application development as foreign. Am I just being dense?
>
OK, what I meant was that the db text books don't talk about integrity (as much as they should) and hence:

1. db-researches to not consider it an important topic
2. users do not realise it is important (to the extent that they should) and
3. DBMS-vendors do not implement integrity features (to the extent that they could)

lauri

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Received on Mon Oct 27 2003 - 00:25:04 CET