My October post @All Analytics
Monday, October 6, 2014
Sunday, September 28, 2014
Weekly Update
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1. Quote of the Week
An old classic:
"Enjoy":
Any way, Nice people. Let's give them a state.
1. Quote of the Week
Further to that point, in my mind you can have a database that is both relational and schema-less, in the sense that it is relational if the only thing in it is relations but it is schema-less if any data updating operation is allowed to change the number or degree etc of said relations, rather than that being reserved for so called data-definition operations. --LinkedIn.com2. To Laugh or Cry?
Turning dirty data words into sweet talkAnd an oldie, but goodie
Gardner to DBAs, BI Vendors Reinvent Yourselves3. Online Debunkings
- The role of data modeling in the coming move to Big Data, massive parallelism, and the “cloud”
- The fine line between “informality” and “loss of intellectual rigor
- The impact of social media technologies on data modeling
An old classic:
Unskilled and Unaware of Itand a related consequence
How Our Botched Understanding of Science Ruins Everything5. And now for something completely different
"Enjoy":
John Oliver: Nuclear WeaponsFascinating:
Freaky Physics Experiment May Prove Our Universe Is A Two-Dimensional HologramAbout the PostWest:
PA: Israelis Must Return to Their Countries of OriginHow about the Arabs in Palestine, most of of whom originate in immigrants from Arab countries attracted to Palestine by jobs created by Jewish development?
- Gaza Schoolchildren Traumatized by Sounds of Hamas Torture
- More on child terrorists in Gaza
- 12-year old Gaza boy, playing resistance, dies digging a tunnel
Any way, Nice people. Let's give them a state.
US Providing Indirect Military Aid to HezbollahAfghanistan and Iraq redux.
Go Easy on Iran So It Fights ISIS? That's AbsurdIndeed: Why should the US allow an enemy nuclear weapons, when fighting ISIS is Iran's own existential interest anyway? Let radical Shia and Sunni duel it out.
World Council of Churches Demands Israel Release TerroristsAh, yes, religion is the source of morality.
Sunday, September 21, 2014
New Paper on Domains
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Pls see the PAPERS page for the current version of the paper, when it becomes available.
Pls see the PAPERS page for the current version of the paper, when it becomes available.
Sunday, September 14, 2014
Weekly Update
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Housekeeping:
1. Quote of the Week
5. And now for something completely different
@The PostWest:
Housekeeping:
- Added a LINKS page to the top site menu, with links to items I deem worth reading. Added a few from my old site and new ones will be added as I come across them.
- Overhauled the FUNDAMENTALS list of sources at the right of the HOME page. It now includes links to the bibliographies of E. F. Codd, D. McGoveran, C. J. Date, H. Darwen and myself.
1. Quote of the Week
The future in data modeling is Object Role Modeling (ORM). It is a far superior way to approach data modeling (compared to any record-based methods such as relational) that avoids all the pitfalls of "Table Think" and the necessity of normalization. --LinkedIn.com2. To Laugh or Cry?
Survey data model, what is the best approach?3. Online Debunkings
Dr. Robin Bloor: Big Data is “nonsense”4. Elsewhere
5. And now for something completely different
Senator Challenges ZuckerbergAmerican patriot.
The Exorcisms of Anneliese MichelFascinating.
@The PostWest:
- Those Who Forget the Past ...
- The Price of Denial
- Qatar's Peace Makers
- Israeli Occupation? No, Arab!
- Obama’s plan is unreal for lack of military muscle
- The Undermining of Western Education
- What the Palestinians Really Want
- What Else is New?
- Who are the Palestinians
- Let's Give Them a State
Sunday, September 7, 2014
Sunday, August 31, 2014
Weekly Update
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1. Quote of the Week
2. To Laugh or Cry?
3. Online Debunkings
4. And now for something completely different
Two books that every American should read (but won't).
@The PostWest
1. Quote of the Week
I use the word grain in the same sense as Kimball although I use it across Facts and Dimensions. I like the term over things like Uniqueness, Constraint, Key because it is a term that business readily understand, and can be used prior to the formal identification of a final key. In Dimensional Modelling it is a best practice for the Fact tables to have such a grain (a composite key across associated Dimensions) and is also necessary for many Dimensions (to assist with updates, type-2 logic etc.) - to the point where it is a best practice to identify the grain (Row Natural Key, Source Id, etc.) of the Dimension. The use of a surrogate key on either Dimensions or Facts must be backed by this level of rigor if data integrity is to be maintained. It also forces modeller consideration of source system issues such as multi-source key uniqueness, reuse of keys, deletions, etc. To clarify a little on Dimensions, the grain of an example type-1 customer dimension would be 'a customer id', the grain of an example type 2 customer dimension would be 'a customer id + as at time'. So 'grain' means the defined uniqueness for a row in the table. Generally, this also has the advantage of calling out poorly designed structures that have not established their relational uniqueness correctly - the cause of the irritating duplicate row issue in a Surrogate Key-oriented Fact table.--LinkedIn.comGot that?
2. To Laugh or Cry?
3. Online Debunkings
- First normal form question
- The 'Real World' and Database Design
- Data Model: Neither Conceptual, Nor Logical, Nor Physical
4. And now for something completely different
Inside The Mind Of LeonardoFascinating.
Two books that every American should read (but won't).
- Matt Taibbi: DIVIDE - AMERICAN INJUSTICE IN THE AGE OF THE WEALTH GAP
- Michael Lewis: FLASH BOYS
@The PostWest
- Holocaust Inversion: “Gaza = Auschwitz”
- Obama’s Irrational Animus for Israel
- Allah_Islam: Say Goodbye to Europe and Civilization
- Israel and the PostWest: Denial, Illusion & Delusion
- It's The Jews, Stupid!
Tuesday, August 26, 2014
Data Analysts: Know Your Business Rules
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My August Post @All Analytics
To ensure data operations make sense and results correspond to the real world and are interpreted correctly, analysts need to know the business rules on the basis of which a database was designed. Here are the types of rules for which they should be looking.
Read it all. (Please comment there, not here)
My August Post @All Analytics
To ensure data operations make sense and results correspond to the real world and are interpreted correctly, analysts need to know the business rules on the basis of which a database was designed. Here are the types of rules for which they should be looking.
Read it all. (Please comment there, not here)
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