- not-null check
- проверка на неравенство нулю
English-Russian dictionary of computer science and programming. 2013.
English-Russian dictionary of computer science and programming. 2013.
Null Object pattern — Null object redirects here. For the concept in category theory, see Initial object. In object oriented computer programming, a Null Object is an object with defined neutral ( null ) behavior. The Null Object design pattern describes the uses of… … Wikipedia
Null (SQL) — Null (nulo) es un marcador especial usado en el lenguaje de consulta estructurado (SQL) para indicar que no existe un valor dentro de una base de datos. Introducido por el creador del modelo relacional de bases de datos E. F. Codd, su función es… … Wikipedia Español
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
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
Null coalescing operator — The null coalescing operator (or Logical Defined Or Operator) is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, including C#,[1] and Perl as of version 5.10.[2] In Scheme, boolean … Wikipedia
Null-move heuristic — In computer chess programs, the null move heuristic is a heuristic technique used to enhance the speed of the alpha beta pruning algorithm. Contents 1 Rationale 2 Implementation 3 Problems with the null move heuristic … Wikipedia
SQLite — Développeur D. Richard Hipp (Hwaci) Dernière version … Wikipédia en Français
Double-checked locking — In software engineering, double checked locking (also known as double checked locking optimization[1] .) is a software design pattern used to reduce the overhead of acquiring a lock by first testing the locking criterion (the lock hint ) without… … Wikipedia
Cyclone (programming language) — Cyclone Appeared in 2006 (2006) Designed by AT T Labs Stable release 1.0 (May 8, 2006; 5 years ago (2006 05 08)) Influenced by … Wikipedia
SQL-92 — SQL (das Kürzel für Structured Query Language; offizielle Aussprache [ɛskjuːˈɛl], häufig auch [ˈsiːkwəl] →SEQUEL), ist eine Datenbanksprache zur Definition, Abfrage und Manipulation von Daten in relationalen Datenbanken. SQL ist von ANSI und ISO… … Deutsch Wikipedia
SQL-99 — SQL (das Kürzel für Structured Query Language; offizielle Aussprache [ɛskjuːˈɛl], häufig auch [ˈsiːkwəl] →SEQUEL), ist eine Datenbanksprache zur Definition, Abfrage und Manipulation von Daten in relationalen Datenbanken. SQL ist von ANSI und ISO… … Deutsch Wikipedia