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Computer language used to make queries into databases and information systems
A query language, also known as data query language or database query language (DQL), is a computer language used to make queries in databases and information
Query_language
Query language for property graphs
GQL (Graph Query Language) is a standardized query language for property graphs first described in ISO/IEC 39075, released in April 2024 by ISO/IEC. The
Graph_Query_Language
Declarative graph query language
Cypher is a declarative graph query language that allows for expressive and efficient data querying in a property graph. Cypher was largely an invention
Cypher_(query_language)
Microsoft .NET Framework component
Language Integrated Query (LINQ, pronounced "link") is a Microsoft .NET framework component that adds native data querying abilities to .NET languages
Language_Integrated_Query
Syntax used to query databases
query language (DQL) is part of the base grouping of SQL sub-languages. These sub-languages are mainly categorized into four categories: a data query
Data_query_language
Resource Description Framework query language, a W3C recommendation
An RDF query language is a computer language, specifically a query language for databases, able to retrieve and manipulate data stored in Resource Description
RDF_query_language
Relational database programming language
Structured Query Language (SQL) (pronounced /ˌɛsˌkjuˈɛl/ S-Q-L; or alternatively as /ˈsiːkwəl/ "sequel") is a domain-specific language used to manage
SQL
SQL database engine software
Michael Widenius' daughter My, and "SQL", the acronym for Structured Query Language. A relational database organizes data into one or more data tables in
MySQL
Query language for object-oriented databases
Object Query Language (OQL) is a query language standard for object-oriented databases modeled after SQL and developed by the Object Data Management Group
Object_Query_Language
Query language
Facebook Query Language (FQL) is a query language that allows querying Facebook user data by using a SQL-style interface, avoiding the need to use the
Facebook_Query_Language
Contextual Query Language (CQL), previously known as Common Query Language, is a formal language for representing queries to information retrieval systems
Contextual_Query_Language
Jakarta Persistence Query Language (JPQL; formerly Java Persistence Query Language) is a platform-independent object-oriented query language defined as part
Jakarta Persistence Query Language
Jakarta_Persistence_Query_Language
Organized collection of data in computing
including data modeling, efficient data representation and storage, query languages, security and privacy of sensitive data, and distributed computing
Database
SQL-like query language
Yahoo! Query Language (YQL) is an SQL-like query language created by Yahoo! as part of their Developer Network. YQL is designed to retrieve and manipulate
Yahoo_Query_Language
Computing language
automata and functional language foundation enable Gremlin to naturally support imperative and declarative querying, host language agnosticism, user-defined
Gremlin_(query_language)
ETL tool developed by Microsoft
tables What is Power Query? - Microsoft Learn Power Query formula language DougKlopfenstein. "Power Query documentation - Power Query". Retrieved 2022-10-27
Power_Query
Computer hacking technique
Lee Chun How (August 23, 2019), A Study of Out-of-Band Structured Query Language Injection, doi:10.5281/ZENODO.3556347, retrieved September 17, 2026
SQL_injection
The Molecular Query Language (MQL) was designed to allow more complex, problem-specific search methods in chemoinformatics. In contrast to the widely used
Molecular_Query_Language
Topics referred to by the same term
Deltarune Query, a precise request for information retrieval made to a database, data structure or information system Query language, a computer language used
Query
Database using graph structures for queries
multi-vendor query languages like Gremlin, SPARQL, and Cypher. In September 2019 a proposal for a project to create a new standard graph query language (ISO/IEC
Graph_database
Syntax for defining data structures
Structured Query Language (SQL) for declaring tables, columns, data types and constraints. SQL-92 introduced a schema manipulation language and schema
Data_definition_language
RDF query language
acronym for SPARQL Protocol and RDF Query Language) is an RDF query language—that is, a semantic query language for databases—able to retrieve and manipulate
SPARQL
Open-source, strongly-typed database
database, programmers use the query language TypeQL. The language is noteworthy for its intended resemblance to natural language, following a subject–verb–object
TypeDB
Multi-model database
with one database core and a unified query language AQL (ArangoDB Query Language). AQL is mainly a declarative language and allows the combination of different
ArangoDB
Programming language for manipulating data
control language Data definition language Data query language Chatham, Mark (2012). Structured Query Language By Example - Volume I: Data Query Language. Lulu
Data_manipulation_language
American software company
parallel processing engine to process algorithms and queries. It has its own graph query language that is similar to SQL. TigerGraph also provides a software
TigerGraph
Query language for astronomical data
Astronomical Data Query Language (ADQL) is a language for astronomical data query based on SQL 92. ADQL is a specialized variant of the SQL query language adapted
Astronomical Data Query Language
Astronomical_Data_Query_Language
Query entered into a web search engine
used. They vary greatly from standard query languages, which are governed by strict syntax rules as command languages with keyword or positional parameters
Web_query
Free and open-source graph database
deep linking can be discovered. WOQL (web object query language) is a datalog-based query language. It allows TerminusDB to treat the database as a document
TerminusDB
Object–relational mapping tool
SQL inspired language called Hibernate Query Language (HQL) for writing SQL-like queries against Hibernate's data objects. Criteria Queries are provided
Hibernate_(framework)
characterized by a publicly writeable schema-less database that provides a query language, a fine-grained permissions model and promotes data sharing, both publicly
Fluidinfo
Cloud-based NoSQL document database service
Datastore Query Language) is a query language just like SQL and it is designed to interact with Google Cloud Datastore. GQL allows users to query the Datastore
Google_Cloud_Datastore
Type of computer program
typically provide an API or query language that enables retrieval based on document content or associated metadata. For example, a query may return all documents
Document-oriented_database
Digital database whose organization is based on the relational model of data
systems are equipped with the option of using SQL (Structured Query Language) for querying and updating the database. The concept of relational database
Relational_database
Distributed query engine
to Trino) is a distributed query engine for big data using the SQL query language. Its architecture allows users to query data sources such as Hadoop
Presto_(SQL_query_engine)
Way to obtain data from a database
or viewed on the screen. A query language, like for example Structured Query Language (SQL), is used to prepare the queries. SQL is an American National
Data_retrieval
Cloud-based data warehouse service
(PaaS) that supports querying using a dialect of SQL and Graph Query Language. It also has built-in machine learning capabilities. BigQuery was announced in
BigQuery
Aspect of information processing
Semantic queries allow for queries and analytics of associative and contextual nature. Semantic queries enable the retrieval of both explicitly and implicitly
Semantic_query
Online knowledge base (2007–2016)
2 May 2016. Both Graphd and MQL, the graph database and JSON-based query language developed by Metaweb for Freebase, are open-sourced by Google under
Freebase_(database)
System that provides database services specifically for arrays
precursor of a 2-D array query language, albeit still procedural and without suitable storage support. A first declarative query language suitable for multiple
Array_DBMS
reports). Query Language (473L Query) Query Language was "very similar to the COLINGO query language and was "a constrained English language…for man-machine
IBM 473L Command and Control System
IBM_473L_Command_and_Control_System
Database query language
Query by Example (QBE) is a database query language for relational databases. Query by Example was devised by Moshé M. Zloof at IBM Research during the
Query_by_Example
Functional programming and query language for XML
XQuery (XML Query) is a query language and functional programming language designed to query and transform collections of structured and unstructured data
XQuery
Relational database access language
QUEL is a relational database query language, based on tuple relational calculus, with some similarities to SQL. It was created as a part of the Ingres
QUEL_query_languages
Type of NoSQL database
MultiValue implementations, the MultiValue query language differs from SQL in several respects. Each query is issued against a single dictionary within the
MultiValue_database
Web search engine owned by Yandex
on a single page. Yandex Search is responsive to real-time queries, recognizing when a query requires the most current information, such as breaking news
Yandex_Search
Query language for interrogating chess databases
Chess Query Language (CQL) is a structured query language which is designed to allow chess players and researchers to search for games, positions, problems
Chess_Query_Language
Data query language developed by Facebook
GraphQL is a data query and manipulation language that allows specifying what data is to be retrieved ("declarative data fetching") or modified. A GraphQL
GraphQL
Standard syntax for querying JSON values
In computer software, JSONPath is a query language for querying values in JSON. The uses of JSONPath include: Selecting a specific node in a JSON value
JSONPath
Method of creating database queries
QBE system converts the user input into a formal database query using Structured Query Language (SQL) on the backend, allowing the user to perform powerful
Microsoft_Query
Access, the successor to ENGLISH, is an English-like query language used in the Pick operating system. The original name ENGLISH is something of a misnomer
Access_query_language
American computer scientist
best known as co-inventor of SQL (Structured Query Language), the world's most widely used database language. Developed in the mid-1970s by Chamberlin and
Donald_Chamberlin
Microsoft's implementation of the CIM Query Language
Management Instrumentation Query Language (WQL) is Microsoft's implementation of the CIM Query Language (CQL), a query language for the Common Information
WQL
result of Discover method is a rowset. XMLA specifies MDXML as the query language. In the XMLA 1.1 version, the only construct in MDXML is an MDX statement
XML_for_Analysis
Graph database implemented in Java
in Java and accessible from software written in other languages using the Cypher query language through a transactional HTTP endpoint, or through the
Neo4j
Database for storage and retrieval of triples
triplestore is stored and retrieved via a query language. SPARQL is the W3C-standardized query language for querying RDF data, and is implemented by most actively
Triplestore
SQL clause
A join clause in the Structured Query Language (SQL) combines columns from one or more tables into a new table. The operation corresponds to a join operation
Join_(SQL)
Computer security exploit using injected code
flaws are often found in services like Structured Query Language (SQL) databases, Extensible Markup Language (XML) parsers, operating system commands, Simple
Code_injection
Database class for storage and retrieval of modeled data
sometimes called "Not only SQL" because they can support SQL-like query languages or work alongside SQL databases in polyglot-persistent setups, where
NoSQL
Object-oriented query language
object-oriented query language used to retrieve data from relational database management systems. It is reminiscent of the standard query language SQL and the
.QL
Processing mode
(/ˈoʊlæp/), is an approach to quickly answer multi-dimensional analytical (MDA) queries. The term OLAP was created as a slight modification of the traditional
Online_analytical_processing
American computer scientist (1946–1974)
form. Together with Donald D. Chamberlin, he co-developed Structured Query Language (SQL) while managing the Relation Database development group for IBM
Raymond_F._Boyce
Database access software
SQL/DS (Structured Query Language/Data System), released in 1981, was IBM's first commercial relational-database management system. It implemented the
IBM_SQL/DS
Jakarta EE persistence API
Jakarta EE 8 and below) The Jakarta Persistence Query Language (JPQL; formerly Java Persistence Query Language) Object/relational metadata The final release
Jakarta_Persistence
Free and open-source database management system
performance Cassandra Query Language (CQL) is the interface for accessing Cassandra, as an alternative to the traditional Structured Query Language (SQL). CQL adds
Apache_Cassandra
Open-source database management system
allows users to generate analytical reports using structured query language (SQL) queries in real-time. ClickHouse Inc. is headquartered in the San Francisco
ClickHouse
Formal language for describing data models
standard query language for RDF graphs. RDF Schema (RDFS), Web Ontology Language (OWL) and SHACL (Shapes Constraint Language) are ontology languages that
Resource Description Framework
Resource_Description_Framework
Cloud-based event processing service
Talk". Simple Talk. 2015-06-02. Retrieved 2017-08-22. "Stream Analytics Query Language Reference". msdn.microsoft.com. Retrieved 2017-08-22. Official website
Azure_Stream_Analytics
Computer server providing database services
database applications respond to a query language. Each database understands its query language and converts each submitted query to server-readable form and
Database_server
English code analysis platform
object-oriented query language for deductive databases developed by Semmle. It is distinguished within this class by its support for recursive query. The company
Semmle
Declarative logic programming language
different behavior and properties from Prolog. It is often used as a query language for deductive databases. Datalog has been applied to problems in data
Datalog
Format for expressing data in the RDF data model
(RDF) data model. Turtle syntax is similar to that of SPARQL, an RDF query language. It is a common data format for storing RDF data, along with N-Triples
Turtle_(syntax)
2023 edition of the SQL standard
technology – Database languages – SQL") is the ninth edition of the ISO (1987) and ANSI (1986) standard for the SQL database query language. It was formally
SQL:2023
Content-based retrieval of XML documents
An XML Query Language". W3C Recommendation. World Wide Web Consortium. Retrieved 2009-02-10. Schlieder, Torsten; Meuss, Holger (2002). "Querying and Ranking
XML_retrieval
Uniqueness of data in a database column
In SQL (Structured Query Language), the term cardinality refers to the uniqueness of data values contained in a particular column (attribute) of a database
Cardinality_(SQL_statements)
Free application for event monitoring and alerting
model, operational simplicity, scalable data collection, and a powerful query language in a single tool. The project was open source from the start and was
Prometheus_(software)
Database of data representing objects in geometric space
addition of spatial capabilities to the query language (e.g., SQL); these give the spatial database the same query, analysis, and manipulation operations
Spatial_database
Marker used in SQL databases to indicate a value does not exist
In the SQL database query language, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the
Null_(SQL)
Query language
query language for data mining models supported by Microsoft's SQL Server Analysis Services product. Like SQL, it supports a data definition language
Data_Mining_Extensions
Database management system
and inheritance are directly supported in database schemas and in the query language. Also, as with pure relational systems, it supports extension of the
Object–relational_database
Relational model
declarative database-query language for data manipulation in this data model. It formed the inspiration for the database-query languages QUEL and SQL, of
Tuple_relational_calculus
Standard for smart cards
ISO/IEC 7816-7:1999 Part 7: Interindustry commands for Structured Card Query Language (SCQL) ISO/IEC 7816-8:2016 Part 8: Commands and mechanisms for security
ISO/IEC_7816
Online analytical processing (OLAP) and data mining tool in Microsoft SQL Server
PMML. MDX - for querying OLAP cubes LINQ - for querying OLAP cubes from .NET using ADO.NET Entity Framework and Language INtegrated Query (SSAS Entity Framework
Microsoft_Analysis_Services
Query language in computer science
Structured Query Language (HTSQL) is a schema-driven URI-to-SQL query language that takes a request over HTTP, converts it to a SQL query, executes the query against
HTSQL
Database management system
for multidimensional arrays, including a data model and declarative query language. pioneering the field of Array Databases. Today, multidimensional arrays
Rasdaman
Control Language Coq, renamed Rocq CORAL, Coral 66 CorVision COWSEL CPL Cryptol Crystal Csound Cuneiform Curl Curry Cybil Cyclone Cypher Query Language Cython
List_of_programming_languages
Smallest transitive relation containing a given binary relation
Jeffrey Ullman in 1979, who proposed to use fixpoint logic as a database query language. With more recent concepts of finite model theory, proof that FO(TC)
Transitive_closure
Finding information for an information need
information need can be specified in the form of a search query. In the case of document retrieval, queries can be based on full-text or other content-based indexing
Information_retrieval
Database model
retrieval procedures for answering queries. Most relational databases use the SQL data definition and query language; these systems implement what can
Relational_model
Type of database query
theory, a conjunctive query is a restricted form of first-order queries using the logical conjunction operator. Many first-order queries can be written as
Conjunctive_query
control is that in GBAC access rights are defined using an organizational query language instead of total enumeration. The foundations of GBAC go back to a research
Graph-based_access_control
Database feature
statement, parameterized statement, (not to be confused with parameterized query) is a feature where the database pre-compiles SQL code and stores the results
Prepared_statement
Markup language and file format
programming libraries for accessing XML-encoded data. XQuery (XML Query) is an XML query language strongly rooted in XPath and XML Schema. It provides methods
XML
Cross-platform document-oriented database
implements its own query language called Mongo Query Language (MQL). MongoDB supports field, range query and regular-expression searches. Queries can return specific
MongoDB
two ways: In a persistent programming language: The query language is fully integrated with the host language and both share the same type system. Any
Persistent programming language
Persistent_programming_language
Free and open-source object relational database management system
Andrew Yu and Jolly Chen replaced the POSTQUEL query language interpreter with one for the SQL query language, creating Postgres95. The monitor console was
PostgreSQL
Part of a URL that assigns values to specified parameters
A query string is an optional component string of a URI, used to provide a set of one or more parameter values. When a URI is submitted to a server in
Query_string
Instruction set which governs access to a database
component of Structured Query Language (SQL). Data Control Language is one of the logical groups in SQL Commands. SQL is the standard language for relational database
Data_control_language
Schema for knowledge representation
triplestore, then one can extract some knowledge from them using a query language, like SPARQL. The first version was published by the World-Wide Web
RDF_Schema
Application layer communications protocol
in 1988, 1992, 1995 and 2003. The Contextual Query Language (formerly called the Common Query Language) is based on Z39.50 semantics. The protocol supports
Z39.50
travel, tourism, insurance
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
QUERY LANGUAGE
travel, tourism, insurance