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Transitive Dependency
A transitive dependency is a functional dependency which holds by virtue of transitivity among various software components. Computer programs In a computer program a direct dependency is functionality exported by a library, or API, or any software component that is referenced directly by the program itself. A transitive dependency is any dependency that is induced by the components that the program references directly. E.g. a call to a function will usually induce a transitive dependency to a library that manages the I/O to write the log message in a file. Dependencies and transitive dependencies can be resolved at different times, depending on how the computer program is assembled and/or executed: e.g. a compiler can have a link phase where the dependencies are resolved. Sometimes the build system even allows management of the transitive dependencies. Similarly, when a computer uses services, a computer program can depend on a service that should be started before to execute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Functional Dependency
In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation from a database. In other words, a functional dependency is a constraint between two attributes in a relation. Given a relation ''R'' and sets of attributes X,Y \subseteq R, ''X'' is said to functionally determine ''Y'' (written ''X'' → ''Y'') if and only if each ''X'' value in ''R'' is associated with precisely one ''Y'' value in ''R''; ''R'' is then said to ''satisfy'' the functional dependency ''X'' → ''Y''. Equivalently, the projection \Pi_R is a function, i.e. ''Y'' is a function of ''X''. In simple words, if the values for the ''X'' attributes are known (say they are ''x''), then the values for the ''Y'' attributes corresponding to ''x'' can be determined by looking them up in ''any'' tuple of ''R'' containing ''x''. Customarily ''X'' is called the ''determinant'' set and ''Y'' the ''dependent'' set. A functional dependency FD: ''X'' → ''Y'' is called ''tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twenty Thousand Leagues Under The Sea
''Twenty Thousand Leagues Under the Seas'' (french: Vingt mille lieues sous les mers) is a classic science fiction adventure novel by French writer Jules Verne. The novel was originally serialized from March 1869 through June 1870 in Pierre-Jules Hetzel's fortnightly periodical, the . A deluxe octavo edition, published by Hetzel in November 1871, included 111 illustrations by Alphonse de Neuville and Édouard Riou. The book was widely acclaimed on its release and remains so; it is regarded as one of the premier adventure novels and one of Verne's greatest works, along with '' Around the World in Eighty Days'' and ''Journey to the Center of the Earth''. Its depiction of Captain Nemo's underwater ship, the ''Nautilus'', is regarded as ahead of its time, since it accurately describes many features of today's submarines, which in the 1860s were comparatively primitive vessels. A model of the French submarine ''Plongeur'' (launched in 1863) figured at the 1867 Exposition Universe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Confession
''A Confession'' (Reforms of Russian orthography, pre-reform Russian: ; post-reform rus, Исповедь, Íspovedʹ), or ''My Confession'', is a short work on the subject of melancholia, philosophy and religion by the Russian novelist Leo Tolstoy. It was written in 1879 to 1880, when Tolstoy was in his early fifties. Content The book is a brief autobiographical story of the author's struggle with a mid-life existential crisis. It describes his search for the answer to the ultimate philosophical question: "If God does not exist, since death is inevitable, what is the meaning of life?." Without the answer to this, for him, life had become "impossible". The story begins with the Eastern fable of the dragon in the well. A man is chased by a beast into a well, at the bottom of which is a dragon. The man clings to a branch that is being gnawed on by two mice (one black, one white, representing night and day and the relentless march of time). The man is able to lick two drops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russians
, native_name_lang = ru , image = , caption = , population = , popplace = 118 million Russians in the Russian Federation (2002 ''Winkler Prins'' estimate) , region1 = , pop1 = approx. 7,500,000 (including Russian Jews and Russian Germans) , ref1 = , region2 = , pop2 = 7,170,000 (2018) ''including Crimea'' , ref2 = , region3 = , pop3 = 3,512,925 (2020) , ref3 = , region4 = , pop4 = 3,072,756 (2009)(including Russian Jews and Russian Germans) , ref4 = , region5 = , pop5 = 1,800,000 (2010)(Russian ancestry and Russian Germans and Jews) , ref5 = 35,000 (2018)(born in Russia) , region6 = , pop6 = 938,500 (2011)(including Russian Jews) , ref6 = , region7 = , pop7 = 809,530 (2019) , ref7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leo Tolstoy
Count Lev Nikolayevich TolstoyTolstoy pronounced his first name as , which corresponds to the romanization ''Lyov''. () (; russian: link=no, Лев Николаевич Толстой,In Tolstoy's day, his name was written as in pre-reformed Russian. ; ), usually referred to in English as Leo Tolstoy, was a Russian writer who is regarded as one of the greatest authors of all time. He received nominations for the Nobel Prize in Literature every year from 1902 to 1906 and for the Nobel Peace Prize in 1901, 1902, and 1909; the fact that he never won is a major controversy. Born to an aristocratic Russian family in 1828, Tolstoy's notable works include the novels ''War and Peace'' (1869) and ''Anna Karenina'' (1878), often cited as pinnacles of realist fiction. He first achieved literary acclaim in his twenties with his semi-autobiographical trilogy, ''Childhood'', '' Boyhood'', and ''Youth'' (1852–1856), and '' Sevastopol Sketches'' (1855), based upon his experiences in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
