In computer science, a timestamp-based concurrency control algorithm is a optimistic concurrency control method. It is used in some databases to safely...
8 KB (1,409 words) - 12:32, 22 March 2024
Multiversion concurrency control (MCC or MVCC), is a non-locking concurrency control method commonly used by database management systems to provide concurrent access...
11 KB (1,410 words) - 15:32, 11 January 2025
control methods, which involve the use of timestamps on transaction to determine transaction priority: Optimistic concurrency control Timestamp-based...
1 KB (89 words) - 17:44, 13 June 2025
trusted timestamping on the blockchain Linked timestamping Timestamping (computing) Timestamp-based concurrency control Trusted timestamping Claudia Maria...
7 KB (919 words) - 13:03, 24 May 2025
the field of databases, the Thomas write rule is a rule in timestamp-based concurrency control. It can be summarized as ignore outdated writes. It states...
3 KB (519 words) - 22:58, 20 March 2023
effective concurrency even when deadlocks are avoided. Optimistic concurrency control transactions involve these phases: Begin: Record a timestamp marking...
11 KB (1,086 words) - 14:10, 30 April 2025
concurrency control. For instance, a heartbeat network uses timestamping to monitor the nodes on a high availability computer cluster. Timestamping computer...
1 KB (151 words) - 10:19, 11 June 2025
thus can be arranged in order, either by revision number or timestamp. Revisions are based on past revisions, though it is possible to largely or completely...
46 KB (6,250 words) - 16:49, 29 May 2025
Lock (computer science) (category Concurrency control)
multiple threads of execution at once. Locks enforce mutual exclusion concurrency control policies, and with a variety of possible methods there exist multiple...
28 KB (3,538 words) - 09:21, 11 June 2025
Preguiça, Nuno; Shapiro, Marc (2009). "CRDTs: Consistency without Concurrency Control". Computing Research Repository. arXiv:0907.0929. Preguiça, Nuno;...
29 KB (3,385 words) - 14:27, 5 June 2025
transactions", through optimistic concurrency control, timestamp-based concurrency control and multiversion concurrency control (MVCC). Unlike version 1, version...
2 KB (133 words) - 14:28, 26 June 2023
Operational transformation (category Concurrency control)
systems. OT was originally invented for consistency maintenance and concurrency control in collaborative editing of plain text documents. Its capabilities...
46 KB (5,311 words) - 21:59, 26 April 2025
PostgreSQL (redirect from PostgreSQL Data Base Management System)
and open-source programmers. PostgreSQL manages concurrency through multiversion concurrency control (MVCC), which gives each transaction a "snapshot"...
103 KB (8,668 words) - 19:59, 15 June 2025
a merge concurrency model. The following table shows technical details of some well-known version-control software. These are classified based on the following...
95 KB (4,304 words) - 16:23, 16 June 2025
Git (redirect from Git (version control))
contains the name of a tree object (of the top-level source directory), a timestamp, a log message, and the names of zero or more parent commit objects. A...
71 KB (7,254 words) - 19:28, 2 June 2025
Software testing (redirect from Property-based random testing)
desired outcome. Concurrent or concurrency testing assesses the behaviour and performance of software and systems that use concurrent computing, generally...
78 KB (10,062 words) - 11:32, 27 May 2025
IBM DevOps Code ClearCase (redirect from Versioned object base)
authoritative build auditing mechanism to ensure build correctness without timestamps and automatic sharing of build artifacts across views (workspaces). ClearCase...
21 KB (2,490 words) - 09:31, 8 May 2025
Cryptocurrency (redirect from Math Based Currency)
third party. The first timestamping scheme invented was the proof-of-work scheme. The most widely used proof-of-work schemes are based on SHA-256 and scrypt...
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databases can process these requests utilizing scheduling algorithms for concurrency control, prioritizing both students’ requests in some way. Throughout this...
19 KB (2,747 words) - 05:03, 5 December 2023
Commitment ordering (category Concurrency control)
typically costly distribution of local concurrency control information (e.g., local precedence relations, locks, timestamps, or tickets). It generalizes the...
93 KB (12,831 words) - 15:42, 21 August 2024
Urbiscript (category Prototype-based programming languages)
robotics. It features syntactic support for concurrency and event-based programming. It is a prototype-based object-oriented scripting language. It is dynamic:...
11 KB (954 words) - 15:25, 15 December 2024
Ingres (database) (section Concurrency control)
partitioned tables. Ingres uses multiversion concurrency control (MVCC), deterministic concurrency control, and two-phase locking (deadlock detection)...
49 KB (4,974 words) - 06:42, 1 June 2025
SuperPascal (category Concurrent programming languages)
tools. SuperPascal is based on Niklaus Wirth's sequential language Pascal, extending it with features for safe and efficient concurrency. Pascal itself was...
15 KB (1,793 words) - 20:01, 14 February 2024
SQL (redirect from Transaction Control Language)
PRECISION) Decimal floating-point type (DECFLOAT) Datetime types (DATE, TIME, TIMESTAMP) Interval type (INTERVAL) Boolean XML (see SQL/XML) JSON Object database...
45 KB (4,047 words) - 08:39, 14 June 2025
Global serializability (category Concurrency control)
In concurrency control of databases, transaction processing (transaction management), and other transactional distributed applications, global serializability...
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Lamport's distributed mutual exclusion algorithm (category Concurrency control algorithms)
order. The queues are ordered by virtual time stamps derived from Lamport timestamps. Requesting process Pushing its request in its own queue (ordered by time...
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the staging area, the ETL process exercises a great degree of control over concurrency issues during processing. The staging area can support hosting...
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Booting (redirect from Open apple-control-reset)
entries (up to 16 with 16 bytes each), a disk signature (6 bytes), a disk timestamp (6 bytes), an Advanced Active Partition (18 bytes) or special multi-boot...
100 KB (11,298 words) - 00:45, 25 May 2025
hashes. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree, where data...
136 KB (13,246 words) - 01:47, 16 June 2025
Dhahran had been caused by a software error in the system's handling of timestamps. The Patriot missile battery at Dhahran had been in operation for 100...
194 KB (19,914 words) - 06:55, 16 June 2025