An n-tuple is a tuple of n elements, where n is a non-negative integer. There is only one 0-tuple, called the empty tuple. A 1-tuple and a 2-tuple are...
16 KB (2,181 words) - 01:50, 15 July 2024
Tuple-versioning (also called point-in-time) is a mechanism used in a relational database management system to store past states of a relation. Normally...
2 KB (266 words) - 02:47, 15 July 2024
A tuple space is an implementation of the associative memory paradigm for parallel/distributed computing. It provides a repository of tuples that can be...
13 KB (1,453 words) - 08:28, 1 April 2024
operators. New tuples can supply explicit values or be derived from a query. Similarly, queries identify tuples for updating or deleting. Tuples by definition...
32 KB (3,839 words) - 09:34, 12 August 2024
theory, a prime k-tuple is a finite collection of values representing a repeatable pattern of differences between prime numbers. For a k-tuple (a, b, …), the...
10 KB (1,060 words) - 01:03, 28 January 2024
Product type (redirect from Tuple type)
The expression of an instance of a product type will be a tuple, and is called a "tuple type" of expression. A product of types is a direct product...
4 KB (469 words) - 10:59, 15 August 2024
Row (database) (redirect from Tuple (database))
In a relational database, a row, a.k.a. record or tuple, represents a single, implicitly structured data item in a table. A database table can be thought...
2 KB (222 words) - 05:51, 31 July 2024
Tuple calculus is a calculus that was created and introduced by Edgar F. Codd as part of the relational model, in order to provide a declarative database-query...
15 KB (2,295 words) - 18:23, 10 December 2022
computer scientist Edgar F. Codd, where all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational...
30 KB (4,208 words) - 19:11, 26 August 2024
Transmission Control Protocol (redirect from TCP four tuple)
sees any evidence of an attack. A TCP connection is identified by a four-tuple of the source address, source port, destination address, and destination...
109 KB (12,825 words) - 02:48, 28 August 2024
similarly to what is dubbed RDBMS, Tuple Stores, also known as Triple Store or Quad Store but also Generic Tuple Store, Document database, that mimics...
7 KB (789 words) - 18:20, 6 August 2024
and tuple type: The depth attribute defines the number of channels in the image, such as 1 for greyscale images and 3 for RGB images. The tuple type...
25 KB (3,089 words) - 16:46, 14 July 2024
all tuples found in either relation (union), removing tuples from the first relation found in the second relation (difference), extending the tuples of...
51 KB (6,333 words) - 19:48, 15 August 2024
a tuple of values sequentially computed are going to be useful only if the whole tuple meet certain conditions. Knowing that a value of the tuple invalides...
1 KB (157 words) - 02:43, 11 May 2021
The Pseudo K-tuple nucleotide composition or PseKNC, was extended from Chou's Pseudo amino acid composition (PseAAC). Both PseAAC and PseKNC are of vector...
3 KB (326 words) - 17:47, 22 August 2024
mathematics, a circular shift is the operation of rearranging the entries in a tuple, either by moving the final entry to the first position, while shifting...
9 KB (986 words) - 16:50, 20 July 2024
database theory, a relation, as originally defined by E. F. Codd, is a set of tuples (d1,d2,...,dn), where each element dj is a member of Dj, a data domain....
10 KB (1,295 words) - 08:26, 1 April 2024
In relational database theory, a tuple-generating dependency (TGD) is a certain kind of constraint on a relational database. It is a subclass of the class...
4 KB (555 words) - 23:07, 28 March 2024
bringing many language additions like tuples in rest parameters and spread expressions, rest parameters with tuple types, generic rest parameters and so...
45 KB (3,434 words) - 08:03, 9 August 2024
basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system, the geographic coordinate system is...
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of attributes that uniquely identifies each tuple of a relation. Because superkey values are unique, tuples with the same superkey value must also have...
5 KB (549 words) - 06:18, 23 March 2024
nested_loop_join is for each tuple r in R do for each tuple s in S do if r and s satisfy the join condition then yield tuple <r,s> This algorithm will involve...
2 KB (335 words) - 08:22, 14 February 2024
Result of FISH analysis using LSI probe (TUPLE 1) from DiGeorge/velocardiofacial syndrome critical region. TUPLE 1 (HIRA) probe was labeled in Spectrum...
49 KB (5,271 words) - 23:49, 7 July 2024
compound data types: Tuples Tuples are containers for a fixed number of Erlang data types. The syntax {D1,D2,...,Dn} denotes a tuple whose arguments are...
42 KB (4,758 words) - 23:01, 4 July 2024
with or without an index. Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements, which may...
40 KB (3,765 words) - 20:25, 25 August 2024
Pythagorean triple (redirect from Pythagorean n-tuple)
is a Pythagorean n-tuple for any tuple of positive integers (m1, ..., mn) with m2 1 > m2 2 + ... + m2 n. The Pythagorean n-tuple can be made primitive...
81 KB (11,394 words) - 17:10, 7 August 2024
some contexts, for tuples, which are finite sequences (of numbers or other objects) of a fixed length. Both geometric vectors and tuples can be added and...
10 KB (2,013 words) - 17:06, 9 August 2024
list_of_lists for elem in lst] def catmull_rom_spline( P0: tuple, P1: tuple, P2: tuple, P3: tuple, num_points: int, alpha: float = 0.5, ): """ Compute the...
14 KB (2,179 words) - 14:13, 31 May 2024
Twin prime (redirect from Prime k-tuples conjecture)
above. The fully general first Hardy–Littlewood conjecture on prime k-tuples (not given here) implies that the second Hardy–Littlewood conjecture is...
21 KB (2,628 words) - 22:57, 25 August 2024
immutable in Python). Tuples, written as (1, 2, 3), are immutable and thus can be used as keys of dictionaries, provided all of the tuple's elements are immutable...
161 KB (13,326 words) - 16:05, 28 August 2024