unique indexing

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• Human Relations Area Files — The Human Relations Area Files, Inc. (HRAF), located in New Haven, Connecticut is a nonprofit international membership organization with over 300 member institutions in the U.S. and more than 20 other countries. A financially autonomous research… …   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

• 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

• MEMORY — holocaust literature in european languages historiography of the holocaust holocaust studies Documentation, Education, and Resource Centers memorials and monuments museums film survivor testimonies Holocaust Literature in European Languages The… …   Encyclopedia of Judaism

• Extensible Storage Engine — For JET Red storage engine of Microsoft Access, see Microsoft Jet Database Engine. For the teacher s term, Exceptional education. Extensible Storage Engine (ESE), also known as JET Blue, is an Indexed Sequential Access Method (ISAM) data storage… …   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

• Web crawler — For the search engine of the same name, see WebCrawler. For the fictional robots called Skutters, see Red Dwarf characters#The Skutters. Not to be confused with offline reader. A Web crawler is a computer program that browses the World Wide Web… …   Wikipedia

• Electron backscatter diffraction — An electron backscatter diffraction pattern An electron backscatter diffraction pattern of monocrystalline silicon, taken …   Wikipedia

• ICD — The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social… …   Wikipedia

• information processing — Acquisition, recording, organization, retrieval, display, and dissemination of information. Today the term usually refers to computer based operations. Information processing consists of locating and capturing information, using software to… …   Universalium

• Correlation database — A Correlation database is a database management system (DBMS) that is data model independent and designed to efficiently handle unplanned, ad hoc queries in an analytical system environment. It was developed in 2005 by database architect Joseph… …   Wikipedia