In the fields of databases and transaction processing (transaction management), a schedule (or history) of a system is an abstract model to describe the...
20 KB (2,514 words) - 18:17, 18 August 2024
A database transaction symbolizes a unit of work, performed within a database management system (or similar system) against a database, that is treated...
12 KB (1,550 words) - 12:27, 5 August 2024
critical path method. Scheduling is important as an internal process in computer science, wherein a database transaction schedule is a list of actions...
17 KB (2,082 words) - 20:15, 12 August 2024
Two-phase locking (redirect from Rigorousness (databases))
name of the resulting set of database transaction schedules (histories). The protocol uses locks, applied by a transaction to data, which may block (interpreted...
7 KB (778 words) - 18:15, 18 November 2024
processes. The transaction-related mechanisms typically constrain the database data access operations' timing (transaction schedules) to certain orders...
19 KB (2,121 words) - 21:17, 20 August 2024
Concurrency control (category Transaction processing)
that no committed transaction in a schedule has read data written by an aborted transaction. Such data disappear from the database (upon the abort) and...
24 KB (2,976 words) - 07:25, 28 September 2024
to machines. Database transaction schedule, a list of actions from a set of transactions in databases Interval scheduling Key schedule, cryptographic...
2 KB (257 words) - 22:00, 22 December 2023
Corporation. It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database workloads. Oracle...
23 KB (1,378 words) - 05:53, 2 October 2024
data through the enforcement of database transaction deadlines and include a mechanism (such as transaction scheduling policies) to maximize the number...
19 KB (2,747 words) - 05:03, 5 December 2023
changes in computer projects A database transaction schedule, also called a history, in the fields of databases and transaction processing Web browsing history...
6 KB (693 words) - 04:12, 12 August 2024
Rollback (data management) (category Transaction processing)
transaction log, but can also be implemented via multiversion concurrency control. A cascading rollback occurs in database systems when a transaction...
4 KB (397 words) - 11:24, 1 May 2024
IBM Information Management System (category Database engines)
Management System (IMS) is a joint hierarchical database and information management system that supports transaction processing. IBM designed the IMS with Rockwell...
10 KB (1,027 words) - 10:55, 4 November 2024
Purpose of Transaction (Section 4). An aggregate database of schedules 13D, 13G, 13F are provided by private service providers such as Edgar. Schedule 13G Schedule...
3 KB (435 words) - 14:46, 15 October 2022
System (IMS) – 1966. A joint hierarchical database and information management system with extensive transaction processing capabilities. Runs on OS/360...
14 KB (1,656 words) - 00:42, 24 August 2024
Thomas write rule (category Transaction processing)
example, consider a database with 3 variables (A, B, C), and two atomic operations C := A (T1), and C := B (T2). Each transaction involves a read (A or...
3 KB (519 words) - 22:58, 20 March 2023
Write–read conflict (category Transaction processing)
occurs when "a transaction requests to write an entity, for which an unclosed transaction has already made a read request." Given a schedule S S = [ T 1...
2 KB (249 words) - 19:06, 20 August 2024
Write–write conflict (category Transaction processing)
occurs when "transaction requests to write an entity for which an unclosed transaction has already made a write request." Given a schedule S S = [ T 1...
2 KB (235 words) - 19:06, 20 August 2024
AXFR, is a type of DNS transaction. It is one of the many mechanisms available for administrators to replicate DNS databases across a set of DNS servers...
14 KB (1,859 words) - 17:44, 9 January 2024
Read–write conflict (category Transaction processing)
occurs when a "transaction requests to read an entity for which an unclosed transaction has already made a write request." Given a schedule S S = [ T 1 T...
2 KB (325 words) - 02:59, 12 February 2024
Precedence graph (category Database management systems)
context of concurrency control in databases. It is the directed graph representing precedence of transactions in the schedule, as reflected by precedence of...
5 KB (757 words) - 19:00, 27 December 2023
Serializable may refer to: Serializable (databases), an attribute of a database transaction's schedule (history) capable of being serialized, or transformed...
238 bytes (55 words) - 11:31, 20 January 2024
architectures Concurrency control § Concurrency control mechanisms Database transaction schedule § Serializable Serializability Madnick 1968, p.19 Saltzer, Jerome...
7 KB (845 words) - 20:41, 24 November 2024
Data warehouse (redirect from Dimensional database)
transactions per second. OLTP databases contain detailed and current data. The schema used to store transactional databases is the entity model (usually...
35 KB (4,435 words) - 16:38, 21 November 2024
Global serializability (category Transaction processing)
global schedule of transactions. A global schedule is the unified schedule of all the individual database (and other transactional object) schedules in a...
9 KB (996 words) - 07:32, 5 March 2024
and improve scheduling and performance of millions of Apache Spark tasks. The basic idea is to run a multi-node multi-core, transactional, highly-available...
7 KB (728 words) - 22:54, 12 November 2024
Timestamp-based concurrency control (category Transaction processing)
the wrong transaction is actually presented first, then it is aborted and the transaction must be restarted. Every object in the database has a read...
8 KB (1,409 words) - 12:32, 22 March 2024
people known as the Strict Strict histories (or executions) in database transaction scheduling This disambiguation page lists articles associated with the...
469 bytes (91 words) - 21:42, 22 December 2023
Linearizability (category Transaction processing)
again. In a database transaction, if the transaction cannot be completed due to a concurrent operation (e.g. in a deadlock), the transaction will be aborted...
24 KB (3,291 words) - 03:39, 9 October 2024
Replication (computing) (redirect from Secondary database server)
own properties and performance: Transactional replication: used for replicating transactional data, such as a database. The one-copy serializability model...
24 KB (3,141 words) - 15:31, 5 October 2024
heart of the database and transaction system is Integrated Recovery. "Integrated" implies the integration of all data models, the transaction file manager...
3 KB (377 words) - 12:53, 19 July 2024