Codd's Laws - определение. Что такое Codd's Laws
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Что (кто) такое Codd's Laws - определение

RELATIONAL DATABASE DESIGN
Codd's twelve rules; Codd's rules; Codd rules; Codds laws; Codd's 12 Rules
Найдено результатов: 1333
Codd's 12 rules         
Codd's twelve rules are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.
Laws (dialogue)         
PLATONIC DIALOGUE
The Laws; Plato's Laws; Laws (Plato); Cleinas; The Laws (Plato)
The Laws (Greek: Νόμοι, Nómoi; Latin: De LegibusHenri Estienne (ed.), Platonis opera quae extant omnia, Vol.
Codd's theorem         
THEOREM OF EXPRESSIVE EQUIVALENCE BETWEEN RELATIONAL LANGUAGES
Codd's Theorem
Codd's theorem states that relational algebra and the domain-independent relational calculus queries, two well-known foundational query languages for the relational model, are precisely equivalent in expressive power. That is, a database query can be formulated in one language if and only if it can be expressed in the other.
Nuremberg Laws         
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  • SA]] picket in front of a Jewish place of business during the [[Nazi boycott of Jewish businesses]], 1 April 1933.
  • left
  • p=217}}
  • "Whoever wears this sign is an enemy of our people" – ''[[Parole der Woche]]'', 1 July 1942
  • 1935 chart shows racial classifications under the Nuremberg Laws: German, ''[[Mischling]]e'', and Jew.
  • Decree of Tsar [[Boris III of Bulgaria]] for approval of The law for protection of the nation
ANTISEMITIC LAWS IN NAZI GERMANY
Nuremberg laws; Nuremburg Laws; Reich Citizenship Law; Nurnberg Laws; Nazi Nuremburg Laws; Nuremberg Racial Purity Laws; The Reich Citizenship Law; Nazi Nuremberg Laws; Nuremberg Laws of Citizenship and Race; Nuremberg Race Laws; Nuremburg laws; Law for the Protection of German Blood and Honor; Nürnberg Laws; Nazi Nuremberg laws; Nuremberg law; Nuernberg Laws; Nuremberg Laws on Citizenship and Race; Nuremberg Decrees; Law for the Protection of German Blood and German Honour; Nürnberger Gesetze; Gesetz zum Schutze des deutschen Blutes und der deutschen Ehre; Law for the Protection of German Blood and German Honor; Reich citizenship; German-blooded
The Nuremberg Laws (, ) were antisemitic and racist laws that were enacted in Nazi Germany on 15 September 1935, at a special meeting of the Reichstag convened during the annual Nuremberg Rally of the Nazi Party. The two laws were the Law for the Protection of German Blood and German Honour, which forbade marriages and extramarital intercourse between Jews and Germans and the employment of German females under 45 in Jewish households; and the Reich Citizenship Law, which declared that only those of German or related blood were eligible to be Reich citizens.
Keith Laws         
BRITISH PSYCHOLOGIST
Laws, Keith
Keith R. Laws is a professor of neuropsychology at the School of Psychology at the University of Hertfordshire.
Clothing laws by country         
  • lc=y}}.
  • Partial ban – government bans full-face veils in some locations}}
WIKIMEDIA LIST ARTICLE
Clothing laws in the United States; Clothing laws; Laws on clothing; Laws on clothes; Laws regarding clothes; Laws regarding clothing; Laws regarding nudity; Clothing laws in New Zealand; Clothing laws in Brazil; Clothing laws in Canada; Clothing laws in the United Kingdom
Clothing laws vary considerably around the world. In most countries, there are no laws which prescribe what clothing is required to be worn.
Priscilla Laws         
AMERICAN PHYSICS EDUCATOR
Priscilla W. Laws
Priscilla Watson Laws (born 1940) is an American physics educator, known for her work in activity-based physics education. She is a research professor of physics at Dickinson College.
Three Laws of Robotics         
  • [[ASIMO]] is an advanced [[humanoid robot]] developed by [[Honda]]. Shown here at [[Expo 2005]].
  • This cover of ''[[I, Robot]]'' illustrates the story "Runaround", the first to list all Three Laws of Robotics.
SET OF RULES DEVISED BY THE SCIENCE FICTION AUTHOR ISAAC ASIMOV
Laws of Robotics; Zeroth Law of Robotics; Asenion robots; Asimov's laws; Asimov's Laws; First Law of Robotics; Three laws of robotics; 3 laws of robotics; Three Laws Of Robots; Three laws of robotis; The Three Laws of Robotics; Asimov's three laws of robotics; 3 rules of robotics; Asimov’s Laws; Three Laws Of Robotics; Three rules of robotics; Three Rules of Robotics; A Robot May Not Harm a Human Being; A robot may not injure a human being or, through inaction, allow a human being to come to harm; A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law; A robot must protect its own existence as long as such protection does not conflict with the First or Second Law; Asenion; The Fourth Law of Robotics; Fourth Law of Robotics; The Fifth Law of Robotics; Fifth Law of Robotics; Isaac Asimov's Three Laws of Robotics; Zeroth law of robotics; Three laws of robotic; Three laws of robot; Zeroth law of Robotics; Second Law of Robotics; Third Law of Robotics; 3rd Law of Robotics; 2nd Law of Robotics; 1st Law of Robotics; 0th Law of Robotics; 4th Law of Robotics
The Three Laws of Robotics (often shortened to The Three Laws or known as Asimov's Laws) are a set of rules devised by science fiction author Isaac Asimov. The rules were introduced in his 1942 short story "Runaround" (included in the 1950 collection I, Robot), although they had been foreshadowed in some earlier stories.
Kepler's laws of planetary motion         
  • Planet orbiting the Sun in a circular orbit (e=0.0)
  • Planet orbiting the Sun in an orbit with e=0.2
  • Planet orbiting the Sun in an orbit with e=0.5
  • Planet orbiting the Sun in an orbit with e=0.8
  • max}}}}.
  •  Figure 5: Geometric construction for Kepler's calculation of θ. The Sun (located at the focus) is labeled ''S'' and the planet ''P''. The auxiliary circle is an aid to calculation. Line ''xd'' is perpendicular to the base and through the planet ''P''. The shaded sectors are arranged to have equal areas by positioning of point ''y''.
SCIENTIFIC LAWS DESCRIBING MOTION OF PLANETS AROUND THE SUN
Keplers laws; LawsOfKepler; Kepler's laws; Laws of Kepler; Keplerian harmonic law; Kepler's Laws of Planetary Motion; Keplers Laws; Kepler's law; Kepler's laws of orbital motions; Kepler's Laws; Kepler's Law; John Kepler's Laws; Kepler's First Law; Kepler's Second Law; Kepler's Third Law; Keplers law; Kepler's second law; Kepler's first law; Kepler's third law; Harmonic law; Harmonic Law; Laws of planetary motion; Kepler's 3rd law; Law of equal area; Kepler's 3 laws of planetary motion; Kepler first law; Kepler laws; Kepler laws of planetary motion; Equal areas in equal times; Keppler's Laws; Kepplers law; Keplers laws of planetary motion; Law of areas; Kepler's First Law of Planetary Motion; Kepler’s third law; Keppler's law; Kepler's law of planetary motion; Kepler's Laws Of Planetary Motion; Kepler Laws; Third law of planetary motion; Kepler's law of periods; Equal area law; Kepler ellipse; Kepler ellipses; Three laws of planetary motion
In astronomy, Kepler's laws of planetary motion, published by Johannes Kepler between 1609 and 1619, describe the orbits of planets around the Sun. The laws modified the heliocentric theory of Nicolaus Copernicus, replacing its circular orbits and epicycles with elliptical trajectories, and explaining how planetary velocities vary.
English Poor Laws         
  • access-date=2009-05-17}}</ref> as it was passed in the 43rd year that [[Elizabeth I]] (pictured) reigned as Queen.
  • David Lloyd George, architect of the [[Liberal welfare reforms]] which were implemented outside of the Poor Law system and paved the way for the eventual abolition of the Poor Law.
  • access-date=2009-07-22}}Akron Law Review 30 (1996): 73–128</ref>(also see: [[Sturdy beggar]])
  • [[Nassau William Senior]] argued for greater centralization of the Poor Law system.
  • Punch]]'' criticized the New Poor Law's workhouses for splitting mothers and their infant children.
  • Infighting between [[Edwin Chadwick]] and other [[Poor Law Commissioners]] was one reason for an overhaul of Poor Law administration.
  • Advertisement for builders to build a new Workhouse in north [[Wales]], 1829
LAWS REGARDING POVERTY IN ENGLAND, 16TH–19TH CENTURY
Poor laws; Poor law; Origins of the Poor Law system; English poor law; English Poor Law; English poor laws; English Poor laws; Poor law in England; Poor laws in England; Poor laws in England and Wales; Poor law in England and Wales; Parochial relief; Poor relief (England)
The English Poor Laws were a system of poor relief in England and Wales that developed out of the codification of late-medieval and Tudor-era laws in 1587–1598. The system continued until the modern welfare state emerged after the Second World War.

Википедия

Codd's 12 rules

Codd's twelve rules are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS). They are sometimes referred to as "Codd's Twelve Commandments".