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  2. cron - Wikipedia

    en.wikipedia.org/wiki/Cron

    The crontab files are stored where the lists of jobs and other instructions to the cron daemon are kept. Users can have their own individual crontab files and often there is a system-wide crontab file (usually in /etc or a subdirectory of /etc e.g. /etc/cron.d) that only system administrators can edit. [note 1]

  3. MySQL Workbench - Wikipedia

    en.wikipedia.org/wiki/MySQL_Workbench

    On April 5, 2018, the MySQL Workbench Team announced [28] the first public release of version 8.0.11 as a Release Candidate (RC) together with MySQL Community Server 8.0.11. The first General Availability (GA) release appeared on July 27, 2018 [ 29 ] again together with the server following the new policy for aligning version numbers across ...

  4. MySQL - Wikipedia

    en.wikipedia.org/wiki/MySQL

    MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) [6] is an open-source relational database management system (RDBMS). [6] [7] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [1] and "SQL", the acronym for Structured Query Language.

  5. Hierarchical and recursive queries in SQL - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_and_recursive...

    See MSDN documentation [2] or IBM documentation [13] [14] for tutorial examples. The RECURSIVE keyword is not usually needed after WITH in systems other than PostgreSQL. [15] In SQL:1999 a recursive (CTE) query may appear anywhere a query is allowed. It's possible, for example, to name the result using CREATE [RECURSIVE] VIEW. [16]

  6. Zeller's congruence - Wikipedia

    en.wikipedia.org/wiki/Zeller's_congruence

    The overall function, , normalizes the result to reside in the range of 0 to 6, which yields the index of the correct day of the week for the date being analyzed. The reason that the formula differs between calendars is that the Julian calendar does not have a separate rule for leap centuries and is offset from the Gregorian calendar by a fixed ...

  7. Amdahl's law - Wikipedia

    en.wikipedia.org/wiki/Amdahl's_law

    For example, assume that we are given a serial task which is split into four consecutive parts, whose percentages of execution time are p1 = 0.11, p2 = 0.18, p3 = 0.23, and p4 = 0.48 respectively. Then we are told that the 1st part is not sped up, so s 1 = 1 , while the 2nd part is sped up 5 times, so s 2 = 5 , the 3rd part is sped up 20 times ...

  8. Open Workbench - Wikipedia

    en.wikipedia.org/wiki/Open_Workbench

    They later changed the name to "Project Workbench" (PW). Outside of the US and South America this was marketed by Hoskyns as "Project Manager Workbench" (PMW). [2] Niku Corporation, founded by Rhonda and Farzad Dibachi in 1998, purchased ABT and its products in 2000. Niku decided to make the software open source and renamed it Open Workbench.

  9. Quantum entanglement - Wikipedia

    en.wikipedia.org/wiki/Quantum_entanglement

    Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in a manner such that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.