табличное ограничение
(МСЭ-Т Х.691).
[http://www.iks-media.ru/glossary/index.html?glossid=2400324]
Англо-русский словарь нормативно-технической терминологии. academic.ru. 2015.
Constraint — Mit Constraints (deutsch „Zwangsbedingungen“) werden in diversen Programmiersprachen Bedingungen definiert, die zwingend vom Wert einer Variablen erfüllt werden müssen, damit der Wert ins System übernommen werden kann. In Datenbanksystemen finden … Deutsch Wikipedia
Complexity of constraint satisfaction — The complexity of constraint satisfaction is the application of computational complexity theory on constraint satisfaction. It has mainly been studied for discriminating between tractable and intractable classes of constraint satisfaction… … Wikipedia
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
Propagation constraint — In database systems, a propagation constraint details what should happen to a related table when we update a row or rows of a target table (Paul Beynon Davies, 2004, p.108). Tables are linked using primary key to foreign key relationships. It is… … Wikipedia
File Allocation Table — For other uses, see Fat (disambiguation). FAT Developer Microsoft Full Name File Allocation Table FAT12 (12‑bit version) FAT16/FAT16B (16‑bit versions) FAT32 (32‑bit version with 28 bits used) Introduced … Wikipedia
SQLite — Développeur D. Richard Hipp (Hwaci) Dernière version … Wikipédia en Français
табличное ограничение — (МСЭ Т Х.691). [http://www.iks media.ru/glossary/index.html?glossid=2400324] Тематики электросвязь, основные понятия EN table constraint … Справочник технического переводчика
ECONOMIC AFFAIRS — THE PRE MANDATE (LATE OTTOMAN) PERIOD Geography and Borders In September 1923 a new political entity was formally recognized by the international community. Palestine, or Ereẓ Israel as Jews have continued to refer to it for 2,000 years,… … Encyclopedia of Judaism
Foreign key — In the context of relational databases, a foreign key is a referential constraint between two tables. [ [http://www.visualcase.com/kbase/database basics foreign keys.htm For a simpler visualization, see VisualCase.com] ] The foreign key… … Wikipedia
Unique key — In relational database design, a unique key can uniquely identify each row in a table, and is closely related to the Superkey concept. A unique key comprises a single column or a set of columns. No two distinct rows in a table can have the same… … 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
