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check column

См. также в других словарях:

  • Check Constraint — A check constraint (also known as table check constraint) is a condition that defines valid data when adding or updating an entry in a table of a relational database. A check constraint is applied to each row in the table. The constraint must be… …   Wikipedia

  • Check My Brain — Single by Alice in Chains from the album Black Gives Way to Blue Released Au …   Wikipedia

  • Check It Out (song) — For the John Mellencamp song, see The Lonesome Jubilee. Check It Out Single by will.i.am and Nicki Minaj Rele …   Wikipedia

  • Check Point VPN-1 — VPN 1 is a firewall and VPN product developed by Check Point Software Technologies Ltd. VPN 1 is a stateful firewall which also filters traffic by inspecting the application layer. It was the first commercially available software firewall to use… …   Wikipedia

  • Check Wikipedia — Wikiproyecto:Check Wikipedia Saltar a navegación, búsqueda Esta página contiene de forma consciente fallos ortográficos. Los bots no deben intentar corregirlos. Atajo PR:CWPR:CW …   Wikipedia Español

  • Multidimensional parity-check code — A multidimensional parity check code (MDPC) is a simple type of error correcting code that operates by arranging the message into a multidimensional grid, and calculating a parity digit for each row and column. In general, an n dimensional parity …   Wikipedia

  • Reality Check — may refer to:* Reality Check (television show) , 1995 television show about a man who is stuck in a computer mainframe. *Reality Check (organization), an anti tobacco movement led by teenagers and operated by the New York State Department of… …   Wikipedia

  • Low-density parity-check code — In information theory, a low density parity check code (LDPC code) is an error correcting code, a method of transmitting a message over a noisy transmission channel. [David J.C. MacKay (2003) Information theory, inference and learning algorithms …   Wikipedia

  • Low-Density-Parity-Check-Code — Low Density Parity Check Codes, auch als LDPC oder Gallager Codes bezeichnet, sind lineare Blockcodes zur Fehlerkorrektur. Sie wurden 1962 von Robert Gray Gallager im Rahmen seiner Dissertation am MIT entwickelt [1] [2]. Low Density Parity Check… …   Deutsch Wikipedia

  • EDN (magazine) — Infobox Newspaper name = EDN caption = type = business magazine format = Paper and online magazine foundation = 1956 ceased publication = price = owners = Reed Business Information editor = Matthew Miller founder = language = English political =… …   Wikipedia

  • Null (SQL) — The Greek lowercase omega (ω) character is used to represent Null in database theory. Null is a special marker used in Structured Query Language (SQL) to indicate that a data value does not exist in the database. Introduced by the creator of the… …   Wikipedia

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