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| Hugh Darwen's free book | 25 Aug 2009 17:40 GMT | 2 |
He has turned his course text into a free book at: http://bookboon.com/uk/student/it/an-introduction-to-relational-database-theory It is rather unique, being more self-contained and therefore approachable than many other books on the subject, also short and
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| WWW/Internet 2009: 2nd CFP until 21 September | 25 Aug 2009 14:09 GMT | 96 |
Apologies for cross-postings. Please send to interested colleagues and students -- CALL FOR PAPERS - Deadline for submissions (2nd Call): 21 September 2009 --
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| large-scale log loading & parsing | 18 Aug 2009 04:05 GMT | 2 |
I'm looking for a solution for the following scenario: - System running on multiple servers (could be dozens) - Each server is running IIS and contains logs The solution is a way to easily provide analysis reports on a combined
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| Hierarchical data models | 17 Aug 2009 10:14 GMT | 8 |
I'm looking for any references, discussion or theory about hierarchical models for situations such as residential addresses, geopolitical subdivisions, corporate structures, military ranks, file systems, type systems, etc.
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| some ideas about db rheory | 15 Aug 2009 12:29 GMT | 18 |
Recently I found this article on the internet http://www.cs.mu.oz.au/~rui/publication/vldb08_TransactionTimeIndexing.pdf and have decided to write a reply on the following Reinier’s message from a union is always a join! :
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| another laugher | 11 Aug 2009 22:35 GMT | 2 |
Walter, you've really got me going today. Here's more oversell from the www originator at http://www.scientificamerican.com/article.cfm?id=the-semantic-web&print=true "The Semantic Web will enable machines to COMPREHEND semantic documents
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| Does entity integrity imply entity identity? | 10 Aug 2009 02:18 GMT | 52 |
Since the entity integrity rule ensures that a relational table cannot have any duplicate rows, does that imply that each row in a table maps to a distinct entity?
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| Getting Normal Forms *wrong*. Is there actual disagreement on what 1NF > 3NF means or is this sloppiness or ignorance on authors' parts? | 08 Aug 2009 03:56 GMT | 9 |
Is there "genuine" disagreement on what 1NF, 2NF and 3NF mean? Or is the variety of contradictory in-print definitions of Normal Forms due to sloppy thinking, slopping writing, or plain old ignorance from authors? Also, where can I find an accurate, concise (less than 3
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| New | 06 Aug 2009 17:29 GMT | 1 |
Please take a look at my new website and use the contact us feature to provide feedback on the website that I will be deploying in September. Positive and negative feedback both welcome. Thank you
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| New Website on Business Intelligence... | 06 Aug 2009 03:16 GMT | 5 |
Check out my New Website on Business Intelligence... http://www.businessintelligenceonline.org/
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| A standard UML profile for data modeling. How close are we? | 05 Aug 2009 12:56 GMT | 4 |
1) Are there competing UML Data Modeling profiles (for relational databases) or is only one being considered? One of Scott's articles mentions that an official data modeling profile RFP appeared at OMG in December, 2005.
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| Is a function a relation? | 04 Aug 2009 23:28 GMT | 65 |
Since Keith popped up recently, I'm interesting in reopening the question of whether a function is a relation (I have a small point to add). I'm interpreting "is a" in the same way as D&D. i.e. the question is
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| Object-oriented thinking in SQL context? | 04 Aug 2009 23:13 GMT | 189 |
I have a problem with wrapping my mind into the 'right' wrinkles. I need to come up with a database design in SQL/MSAccess, since that's the tool that is available to me. The subject of the database is an inventory of electronic instruments, and the
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