second normal form
51List of computing and IT abbreviations — This is a list of computing and IT acronyms and abbreviations. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y …
52Denormalization — In computing, denormalization is the process of attempting to optimise the read performance of a database by adding redundant data or by grouping data.[1][2] In some cases, denormalisation helps cover up the inefficiencies inherent in relational… …
53Star schema — The star schema (sometimes referenced as star join schema) is the simplest style of data warehouse schema. The star schema consists of a few fact tables (possibly only one, justifying the name) referencing any number of dimension tables . The… …
54View (database) — In database theory, a view consists of a stored query accessible as a virtual table in a relational database or a set of documents in a document oriented database composed of the result set of a query or map and reduce functions. Unlike ordinary… …
55Вторая нормальная форма — Основная статья: Нормальная форма Вторая нормальная форма (англ. Second normal form; сокращённо 2NF) одна из возможных нормальных форм таблицы реляционной базы данных. Содержание 1 Определение 2 Пример …
56partial dependency — noun A dependency in a relation that is on a partial key; this is a violation of second normal form …
57Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
58radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
59Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
60heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… …
