All articles starting with Q
2,252 articles
Query plan
A query plan, also known as a query execution plan or execution plan, is the tree of scan, join, sort, and aggregate operators a database engine runs for a SQL statement.
Query string
A query string, or URL query, is the part of a URL after the question mark that carries data for the server, conventionally written as key-value pairs separated by ampersands.
Quesadilla
Quesadilla: a Mexican folded corn or flour tortilla filled with cheese (queso) or other stews, cooked on a comal or fried; famously cheese-optional in Mexico City, a 16th-century post-colonial Spanish-indigenous fusion.
Queso
Queso, known as Cheese until 2003, is a Filipino rock band best known for "Mottaka", credited with initiating the Philippine nu metal movement in the late 1990s.
Quesqui Oil and Gas Field
Quesqui is a giant onshore gas and condensate field in Huimanguillo, Tabasco, Mexico, discovered by Pemex in 2019 and announced as Mexico's biggest oil discovery since 1987.
QUEST
QUEST (QUaternion ESTimator) is a fast closed-form algorithm for spacecraft attitude determination from reference directions, published by Shuster and Oh in 1981 and used in hundreds of space missions.
QUEST (tokamak)
QUEST is a medium-sized spherical tokamak at Kyushu University in Kasuga, Fukuoka, Japan, operating since 2008 and known for fully non-inductive discharges lasting up to nearly two hours.
Quest Carbon Capture and Storage
Quest Carbon Capture and Storage is a facility at Shell's Scotford Upgrader near Fort Saskatchewan, Alberta, capturing carbon dioxide from hydrogen production and storing it underground since 2015.
Quest Carbon Capture and Storage facility
The Quest Carbon Capture and Storage facility, operating since 2015 at Shell's Scotford upgrader near Edmonton, Alberta, captures CO2 from hydrogen production and stores it about 2 kilometers underground.
Quest Crew
Quest Crew is a Los Angeles hip-hop dance crew named after the Quest Learning Center in Artesia, California; winners of America's Best Dance Crew season 3 (2009) and the 2015 Road to the VMAs reboot, and recipients of the 2016 Creative Arts Emmy for Outstanding Choreography.
Quest Diagnostics
Quest Diagnostics (NYSE: DGX), founded 1967 as MetPath by Paul Brown and spun off from Corning in 1997, is a Secaucus, New Jersey-based clinical laboratory company; with Labcorp it leads U.S. lab testing, with 2,000+ patient service centers and $3.04 billion Q2 2026 revenue.
Quest for Camelot
Quest for Camelot is a 1998 American animated musical film in which young Kayley sets out to recover the stolen sword Excalibur and save Camelot.
Quest for Fire (film)
Quest for Fire (La Guerre du feu) is Jean-Jacques Annaud's 1981 Canada-France prehistoric adventure, based on J.H. Rosny's 1911 novel, with languages by Anthony Burgess, gestures by Desmond Morris, and an Oscar for makeup.
Quest for Glory
Quest for Glory (originally Hero's Quest) is a five-game Sierra On-Line adventure/RPG hybrid series (1989-1998) by Lori and Corey Cole, set in Gloriana, with class choice, character import between games, and VGA remakes.
Quest Nutrition
Quest Nutrition, LLC is an El Segundo, California maker of high-protein, low-sugar protein bars, chips, cookies and shakes, acquired by Simply Good Foods in 2019 for $1.0 billion; Quest net sales grew from about $345 million to $863 million by fiscal 2025.
Quest Resource Holding Corporation
Quest Resource Holding Corporation is a Texas-based environmental services company providing single-source recycling, waste-stream management, and sustainability services for commercial clients, reporting $250 million in revenue in 2025.
Questa
Questa is a functional verification platform for digital hardware designs sold by Siemens EDA, formerly Mentor Graphics, built around the QuestaSim simulator and first released in 2005.
Questa Capital Partners
Questa Capital Partners is a venture growth equity firm founded in 2016 by Ryan Drant, with offices in San Francisco and Washington, DC, investing in expansion-stage healthcare companies.
Questacon
Questacon, also known as the National Science and Technology Centre, is Australia's national hands-on science center in Canberra, opened as a Bicentennial project in 1988.
Questar Gas Company
Questar Gas Company was a natural gas utility based in Salt Lake City, Utah, serving about 1.2 million customers until Enbridge acquired it in 2024.
Question
Question (linguistics): the abstract meaning entity denoted by an interrogative sentence, distinct from interrogative form and query; classified as polar, alternative, and wh-questions, studied in formal semantics and pragmatics.
Question (character)
The Question (Vic Sage, later Renee Montoya) is a faceless DC Comics vigilante created by Steve Ditko at Charlton in Blue Beetle #1 (1967), reworked by Denny O'Neil, and the basis for Watchmen's Rorschach.
Question answering
Question answering (QA) is a natural language processing task in which a computer returns a direct answer to a question instead of a list of documents.
Question mark
The question mark (?) is a punctuation mark ending direct questions, also called interrogation point or eroteme. Earliest known form is the fifth-century Syriac zagwa elaya; Spanish pairs it with inverted ¿; Greek uses a semicolon-like sign.
Question Mark (aircraft)
Question Mark was a modified Atlantic-Fokker C-2A of the U.S. Army Air Corps that stayed airborne for 150 hours and 40 minutes in January 1929 through in-flight refueling.
Question Time (TV programme)
Question Time, BBC One topical debate programme first broadcast 25 September 1979, based on Any Questions?, chaired by Robin Day, Peter Sissons, David Dimbleby, and Fiona Bruce; public audience questions politicians weekly.
Questionable Content
Questionable Content is a slice-of-life/sci-fi webcomic by Jeph Jacques, running since August 1, 2003, set in alternate-present Northampton, Massachusetts, following Marten, Faye, and robots like Pintsize and Bubbles.
Questioning (sexuality and gender)
Questioning (sexuality and gender), the Q in LGBTQ, is the process of exploring one's sexual orientation, gender identity, or gender expression. Covers definitions, identity-development timing, SOGI survey measurement, and youth mental health.
Questionnaire
Questionnaire: a structured data-collection tool of questions or items measuring attitudes, opinions, and behavior, administered self-administered or researcher-administered, designed through rational, construct, facet and other methods, distinct from interviews.
Questionnaire design
Questionnaire design is the social-science method of constructing written survey instruments that measure attitudes, behaviors, and characteristics, where wording, format, and question order affect measurement error.