- duplicate key value
- дублируемое значение ключа
English-Russian SQL Server dictionary. 2013.
duplicate key value
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Key (lock) — A cut key A key is an instrument that is used to operate a lock. A typical key consists of two parts: the blade, which slides into the keyway of the lock and distinguishes between different keys, and the bow, which is left protruding so that… … Wikipedia
Key punch — A key punch is a device for entering data into punched cards by precisely punching holes at locations designated by the keys struck by the operator. Early keypunches were manual devices. Later keypunches were mechanized, often resembled a small… … Wikipedia
Surrogate key — A surrogate key in a database is a unique identifier for either an entity in the modeled world or an object in the database. The surrogate key is not derived from application data. Definition Two definitions of a surrogate appear in the… … 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
Index (database) — A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of slower writes and increased storage space. Indexes can be created using one or more columns of a database table,… … Wikipedia
Binary search tree — In computer science, a binary search tree (BST) is a binary tree data structurewhich has the following properties: *each node (item in the tree) has a value; *a total order (linear order) is defined on these values; *the left subtree of a node… … Wikipedia
Java collections framework — class and interface hierarchy of java.util.Collection class and interface hierarchy … Wikipedia
Hash table — Not to be confused with Hash list or Hash tree. Unordered map redirects here. For the proposed C++ class, see unordered map (C++). Hash Table Type unsorted dictionary Invented 1953 Time complexity in big O notation Average Worst case Space … Wikipedia
AppleScript — Paradigm(s) Natural language, Scripting … Wikipedia
Architecture of Btrieve — Btrieve is a database developed by Pervasive. The architecture of Btrieve has been designed with record management in mind. This means that Btrieve only deals with the underlying record creation, data retrieval, record updating and data deletion… … Wikipedia
map (C++) — Not to be confused with Map (higher order function). C++ Standard Library fstream iomanip ios iostream sstre … Wikipedia
