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Syntax for defining data structures
In the context of SQL, data definition or data description language (DDL) is a syntax for creating and modifying database objects such as tables, indices
Data_definition_language
Relational database programming language
sublanguages, commonly: data query language (DQL), data definition language (DDL), data control language (DCL), and data manipulation language (DML). The scope
SQL
Computer language used to describe a software component's interface
description language or interface definition language (IDL) is a generic term for a language that lets a program or object written in one language communicate
Interface description language
Interface_description_language
Programming language for manipulating data
schema statements, rather than the data stored within them, is considered to be part of a separate data definition language (DDL). In SQL these two categories
Data_manipulation_language
Instruction set which governs access to a database
SQL commands: Data Manipulation Language (DML) Data Definition Language (DDL) Data Control Language (DCL) Transaction Control Language (TCL) DCL commands
Data_control_language
Data types supported by the C programming language
programming language, data types constitute the semantics and characteristics of storage of data elements. They are expressed in the language syntax in
C_data_types
Syntax used to query databases
categories: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML). Sometimes a
Data_query_language
Computer language specialized to a specific set of requirements or function
ray-tracing domain-specific language like Persistence of Vision Ray Tracer (POV-Ray) compiles to graphics files. A data definition language like SQL presents an
Domain-specific_language
In computing, a data definition specification (DDS) is a guideline to ensure comprehensive and consistent data definition. It represents the attributes
Data_definition_specification
Relational database management system
Server is to provide a standardized language and runtime for the definition, manipulation, and integrity of application data. The Frontend is concerned with
Dataphor
Organized collection of data in computing
as sublanguages: Data control language (DCL) – controls access to data; Data definition language (DDL) – defines data types such as creating, altering
Database
Computer language used to make queries into databases and information systems
Search engine query languages, e.g., as used by Google. or Bing Data control language Data definition language Data manipulation language Path expression
Query_language
Query language
product. Like SQL, it supports a data definition language (DDL), data manipulation language (DML) and a data query language (DQL), all three with SQL-like
Data_Mining_Extensions
Creating a model of the data in a system
relation type. The definition of the generic data model is similar to the definition of a natural language. For example, a generic data model may define
Data_modeling
Markup language and file format
arbitrary data structures, such as those used in web services. Several schema systems exist to aid in the definition of XML-based languages, while programmers
XML
(Network Definition Language) was a compiler on Burroughs Large and Medium Systems computers used to create a network definition file for a data communications
Network_Definition_Language
Type of data modeling language
Integration Definition for Information Modeling (IDEF1X) is a data modeling language for the development of semantic data models. IDEF1X is used to produce
IDEF1X
Attribute of data
understanding of complex definitions. Almost all programming languages explicitly include the notion of data type, though the possible data types are often restricted
Data_type
Planning programming language
The Planning Domain Definition Language (PDDL) is an attempt to standardize Artificial Intelligence (AI) planning languages. It was first developed by
Planning Domain Definition Language
Planning_Domain_Definition_Language
Computing industry working group
published a report containing specifications of a Data Manipulation Language (DML) and a Data Definition Language (DDL) for standardization of network database
Data_Base_Task_Group
Unit of information
Dark data Data (computer science) Data acquisition Data analysis Data bank Data cable Data curation Data domain Data element Data farming Data governance
Data
Field of study to extract knowledge from data
became the first conference to specifically feature data science as a topic. However, the definition was still in flux. After the 1985 lecture at the Chinese
Data_science
Mathematical model for data types
the design and analysis of algorithms, data structures, and software systems. Most mainstream computer languages do not directly support formally specifying
Abstract_data_type
Description of a type of XML document
integrity constraints. There are languages developed specifically to express XML Schemas. The document type definition (DTD) language, which is native to the XML
XML_schema
Programming language
implemented in an optimum manner. The data models are defined using the data definition language (DDL) and data control language (DCL) provided in the ABAP CDS
ABAP
Lists of endangered languages are mainly based on the definitions used by UNESCO. UNESCO's dataset was completed in 2010 and has not been updated since
Lists_of_endangered_languages
Concept in data management
American Archivists (SAA). Retrieved 28 March 2016. "MDDL: Market Data Definition Language". 2014-02-09. Archived from the original on 2014-02-09. Retrieved
Metadata_standard
Data modeling software
model can be used to create the physical data model. Users can then forward engineer the data definition language required to instantiate the schema for
Erwin_Data_Modeler
Database management system
object oriented languages to transactionally store their information by allowing the respective language to act as the Data Definition Language (DDL) for the
Actian_NoSQL_Object_Database
Defined object used to store or reference data
database objects in relational databases are usually created with data definition language (DDL) commands, which in SQL for example can be CREATE, ALTER and
Database_object
Density DDE—Dynamic Data Exchange DDL—Data Definition Language DDoS—Distributed Denial of Service DE—Desktop environment DDR—Double Data Rate DEC—Digital
List of computing and IT abbreviations
List_of_computing_and_IT_abbreviations
Part of the MPEG-7 content standard
DDL (Description Definition Language) is part of the MPEG-7 standard. It gives an important set of tools for the users to create their own Description
Description Definition Language
Description_Definition_Language
First English-like data processing language
description of data from the operations on it. Its data definition language, unlike its executable statements, was not English-like; rather, data structures
FLOW-MATIC
Programming language
one type of data cannot be converted to or interpreted as another without explicit conversions. Unlike C (and also unlike most other languages in the C family)
Pascal_(programming_language)
adding and removing data, and as such is not included in the basic definition of these data types. However, since it is a useful operation and generally easily
Peek_(data_type_operation)
SQL database engine software
acronym for Structured Query Language. A relational database organizes data into one or more data tables in which data may be related to each other;
MySQL
Standard for archival system
database management system, database design paradigm, data definition language, command language, system interface, user interface, technology, or media
Open Archival Information System
Open_Archival_Information_System
Microsoft database software technology
are stored procedures that fire in response to Data Manipulation Language (DML) or Data Definition Language (DDL) events, User-defined functions (UDFs) which
SQL_CLR
XML-based interface description language
it expects, and what data structures it returns. Therefore, its purpose is roughly like a type signature in a programming language. The latest version
Web Services Description Language
Web_Services_Description_Language
State of qualitative or quantitative pieces of information
Data quality refers to the state of qualitative or quantitative pieces of information. There are many definitions of data quality, but data is generally
Data_quality
Multi-model database
operations for both documents (nodes) and edges, but it is not a data definition language (DDL). AQL does support geospatial queries. AQL is JSON-oriented:
ArangoDB
XML document validation schemes
Document Schema Definition Languages (DSDL) is a framework within which multiple validation tasks of different types can be applied to an XML document
Document Schema Definition Languages
Document_Schema_Definition_Languages
Abstract model
problem definition language, at the system level of data processing". This led to the development of a specific IS information algebra. In the 1960s data modeling
Data_model
Formal method for the development of computer-based systems
specifically related to language definition and compiler design (Jones 1980, 1990). It stresses modelling persistent state through the use of data types constructed
Vienna_Development_Method
Family of modeling languages
functional modeling to data, simulation, object-oriented analysis and design, and knowledge acquisition. These definition languages were developed under
IDEF
Stack-based programming language
colon definition. LITERAL has the compilation semantics to take an object from the data stack and to append semantics to the current colon definition to
Forth_(programming_language)
Online analytical processing (OLAP) and data mining tool in Microsoft SQL Server
following query languages DDL in Analysis Services is XML based and supports commands such as <Create>, <Alter>, <Delete>, and <Process>. For data mining models
Microsoft_Analysis_Services
General-purpose programming language
of the different types User-defined data types allow for aliasing a data type specifier Syntax for array definition and access is via square bracket notation
C_(programming_language)
SQL clause
Join Indexes". Retrieved 2024-06-23. Teradata Join Indexes. "SQL Data Definition Language Syntax and Examples - CREATE JOIN INDEX". Retrieved 2024-06-23
Join_(SQL)
Large language model by Meta AI
Open Source AI Definition (OSAID) in October 2024, which requires open-source AI to be released with details about its training data that Meta does not
Llama_(language_model)
Concept in database systems
Invoice (InvoiceNumber, Text, SupplierNumber) The corresponding Data Definition Language statement is as follows. CREATE TABLE Supplier ( SupplierNumber
Foreign_key
Mathematical model used by graph-oriented databases
graphs, or graphs with properties. This data model emerged in the early 2000s. Building upon widely adopted definitions, a property graph/attributed graph
Property_graph
Data-interchange format
used data format with diverse uses in electronic data interchange, including that of web applications with servers. JSON is a programming language-independent
JSON
MDDL (Market Data Definition Language) is an XML-based messaging format for exchanging information related to Financial Instruments Corporate events related
MDDL
Standard data modeling language for product data
EXPRESS is a standard for generic data modeling language for product data. EXPRESS is formalized in the ISO Standard for the Exchange of Product model
EXPRESS (data modeling language)
EXPRESS_(data_modeling_language)
Open source object-relational mapping framework
needed] ADO.NET Entity Framework uses an XML based Data Definition Language called Schema Definition Language (SDL) to define the EDM Schema. The SDL defines
Entity_Framework
International programming language consortium
(Conference/Committee on Data Systems Languages) was a consortium formed in 1959 to guide the development of a standard programming language that could be used
CODASYL
Set of tuples consisting of values indexed by attributes
element dj is a member of Dj, a data domain. Codd's original definition notwithstanding, and contrary to the usual definition in mathematics, there is no
Relation_(database)
IHRA-approved statement on antisemitism
The IHRA definition of antisemitism is a "non-legally binding working" definition of antisemitism that was adopted by the International Holocaust Remembrance
IHRA definition of antisemitism
IHRA_definition_of_antisemitism
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
Null_(SQL)
Bundling of data
programming languages that provide lexical closures view encapsulation as a feature of the language orthogonal to object orientation. The second definition reflects
Encapsulation (computer programming)
Encapsulation_(computer_programming)
Data management process
compares popular data exchange languages. Columns Schemas – Whether supports representing domain specific data structure definition Flexible – Whether supports
Data_exchange
Data definition
Character Data (PCDATA) is a data definition that originated in Standard Generalized Markup Language (SGML), and is used also in Extensible Markup Language (XML)
PCDATA
Category of programming languages
Data-centric programming language defines a category of programming languages where the primary function is the management and manipulation of data. A
Data-centric programming language
Data-centric_programming_language
Definition Language (ADL) and Archetype Object Model (AOM); widely implemented in health IT domain; 'ADL 2': modern release of Archetype Definition Language
Archetype (information science)
Archetype_(information_science)
Topics referred to by the same term
(stock ticker: CTAS), U.S. safety and cleaning equipment company Data Definition Language: Create Table as Select Search for "ctas" , "c-t-a-s", "cta's"
CTAS
Fifth letter of the Latin alphabet
letter in the English language alphabet and several other European languages, which has implications in both cryptography and data compression. This makes
E
Extent to which a programming language discourages type errors
definition: A language is type-safe if the only operations that can be performed on data in the language are those sanctioned by the type of the data
Type_safety
Programming language
docs.rc.fas.harvard.edu. April 29, 2024. "What is C (programming language)? | Definition from TechTarget". SearchWindows Server. "USERS' REFERENCE TO B
Outline of the C programming language
Outline_of_the_C_programming_language
Procedural extension for SQL and the Oracle relational database
readily embed Data Manipulation Language (DML) statements directly into PL/SQL code using straightforward SQL statements, Data Definition Language (DDL) requires
PL/SQL
TV resolution standard
High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation
High-definition_television
Concept in programming language design
provides a definition of the language's evaluator as a compiled tautologisation of itself, facilitating straightforward modification of the language without
First-class_citizen
Northwest Semitic language
Hebrew is a Northwest Semitic language within the Afroasiatic language family. A regional dialect of the Canaanite languages, it was natively spoken by the
Hebrew_language
Open standard for OCR'd text
is an open standard of data representation for formatted text obtained from optical character recognition (OCR). The definition encodes text, style, layout
HOCR
West Germanic language
international L2 accents Portals: Language Linguistics Writing English language at Wikipedia's sister projects: Definitions from Wiktionary Media from Commons
English_language
Structured system of communication
philosophical perspectives regarding the definition of language and meaning, when used as a general concept, "language" may refer to the cognitive ability
Language
Programming language
Erlang programming language has data, pattern matching, and functional programming. The sequential subset of the Erlang language supports eager evaluation
Erlang_(programming_language)
Financial software
FIX Algorithmic Trading Definition Language, better known as FIXatdl, is a standard for the exchange of meta-information required to enable algorithmic
FIXatdl
Family of knowledge representation languages
The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies. Ontologies are a formal way to describe taxonomies
Web_Ontology_Language
Low-level programming language family
numerous assembly language instructions or data definitions, based on the macro arguments. This could be used to generate record-style data structures or
Assembly_language
Database model
The relational model (RM) is an approach to managing data using a structure and language consistent with first-order predicate logic, first described
Relational_model
Language for controlling a computer
language. Determining which is the most widely used programming language is difficult since the definition of usage varies by context. One language may
Programming_language
Computer science concept
For example, a language might allow expressions representing various types of data, expressions that provide structuring rules for data, expressions representing
Type_system
Array programming library for Perl
Perl Data Language (abbreviated PDL) is a set of free software array programming extensions to the Perl programming language. PDL extends the data structures
Perl_Data_Language
Human-readable data serialization language
YAM-əl) is a human-readable data serialization language. It is commonly used for configuration files and in applications where data is being stored or transmitted
YAML
Specialized data centers designed for artificial intelligence
December 17, 2025. "Definition of AI datacenter". PCMag. Archived from the original on October 16, 2024. Retrieved December 21, 2025. "AI Data Center Locations:
AI_data_center
Set of rules defining correctly structured programs
account_number=2345; IF ERRORS=0 COMMIT; IF ERRORS<>0 ROLLBACK; The Data Definition Language (DDL) manages table and index structure. The most basic items of
SQL_syntax
of definitions of terms and concepts used in computer science, its sub-disciplines, and related fields, including terms relevant to software, data science
Glossary_of_computer_science
Code to identify human languages
which languages are members of these collections; only the hierarchical classification of collections is defined, using the inclusive definition of these
IETF_language_tag
Facility used to house computer servers
the original (PDF) on 2026-02-26. Retrieved 2026-02-26. "Data Center Redundancy Definition & Reliability Best Practices". www.socomec.us. Retrieved 2026-02-25
Data_center
Semantic representation of data
elements forms a data structure. A data element has: An identification such as a data element name A clear data element definition One or more representation
Data_element
Computer software
seriously incomplete), XPath (1.0 only), XSLT (1.0 only) SQL's Data Definition Language, XML Schema Virtuoso is a solution for the following system integration
Virtuoso_Universal_Server
Section of code that details a specific command
programming languages (e.g. Ada, Algol 60, C, Java, Pascal) make a distinction between statements and definitions/declarations. A definition or declaration
Statement_(computer_science)
Topics referred to by the same term
dictionary. DDL may refer to: Data definition language or data description language, relating to databases Description Definition Language, part of the MPEG-7 standard
DDL
(Enterprise Control Language) is a declarative, data-centric programming language designed in 2000 to allow a team of programmers to process big data across a high
ECL (data-centric programming language)
ECL_(data-centric_programming_language)
Data serialization format
(tree-structured) data. S-expressions were invented for, and popularized by, the programming language Lisp, which uses them for source code as well as data. In the
S-expression
Programming language
Go Programming Language". go.dev. Retrieved May 15, 2025. Go's iota identifier is used in const declarations to simplify definitions of incrementing
Go_(programming_language)
Microsoft programming language
during execution. A record is a type where the data members are named. Here is an example of record definition: type R = { Name : string Age : int } Records
F Sharp (programming language)
F_Sharp_(programming_language)
Data type that refers to itself in its definition
In computer programming, a recursive data type is a data type whose definition contains values of the same type. It is also known as a recursively defined
Recursive_data_type
Open-source remote procedure call framework
is an interface definition language and binary communication protocol used for defining and creating services for programming languages. It was developed
Apache_Thrift
DATA DEFINITION-LANGUAGE
DATA DEFINITION-LANGUAGE
Female
Polish
 Variant spelling of Polish Dyta, DITA means "rich battle." Compare with another form of Dita.
Female
Russian
 Short form of Russian Yekaterina, KATA means "pure." Compare with other forms of Kata.
Male
Irish
 From Irish Gaelic Mac Dara, DARA means "son of oak." Compare with other forms of Dara.
Female
Finnish
Variant form of Finnish Aada, AATA means "noble."
Female
English
 Middle English name DARA means "brave, daring." Compare with another form of Dara.
Male
Hebrew
Variant spelling of Hebrew Dathan, DATAN means "belonging to a fountain."
Male
English
English surname transferred to unisex forename use, possibly DANA means "from Denmark."
Male
Turkish
Turkish name ATA means "ancestor."
Female
Hindi/Indian
(लता) Hindi name derived from a plant name, from the Sanskrit word lata, LATA means "creeper," in reference to a creeping plant.
Girl/Female
Hindu, Indian
Number; Definition
Male
Hebrew
(דֶּרַע) Hebrew name DARA means "the arm." In the bible, this is the name of a son of Zerah. Compare with other forms of Dara.
Female
English
 English surname transferred to unisex forename use, possibly DANA means "from Denmark." Compare with other forms of Dana.
Female
Hebrew
(דִּיתָה) Pet form of Hebrew Yehuwdiyth, DITA means "Jewess" or "praised." Compare with another form of Dita.
Girl/Female
Indian
Definition
Female
Slavic
 Short form of Slavic Bogdana, DANA means "gift from God." Compare with other forms of Dana.
Female
Finnish
 Short form of Finnish Katariina, KATA means "pure." Compare with other forms of Kata.
Female
Hebrew
(×“Ö¼Ö¸× Ö¸×”) Feminine form of Hebrew Dan, DANA means "judge." Compare with other forms of Dana.
Female
Polish
Short form of Polish Edyta, DYTA means "rich battle."
Male
Iranian/Persian
 Short form of Persian Dârayavahush, DARA means "possesses a lot, wealthy." Compare with other forms of Dara.
Female
Hungarian
 Short form of Hungarian Katalin, KATA means "pure." Compare with other forms of Kata.
DATA DEFINITION-LANGUAGE
DATA DEFINITION-LANGUAGE
Biblical
that makes captive
Surname or Lastname
English
English : (of Norman origin): nickname from Old French mentur ‘liar’.English : variant spelling of Minter.
Boy/Male
Indian, Punjabi, Sikh
God of Bravery
Girl/Female
American, Australian, Chinese, Christian, Greek, Welsh
Pearl; Based on the Abbreviation Meg
Girl/Female
Arabic, Gujarati, Hindu, Indian, Kannada, Muslim
Everlasting Happiness; Illumination
Girl/Female
German, Swedish
Rounded; Polished Smooth
Boy/Male
American, Australian, Japanese
Little Old Wise One; Surname and River
Male
Scandinavian
Scandinavian form of Old Norse Ãsvaldr, OSVALD means "divine power" or "divine ruler."
Male
Italian
Variant spelling of Italian Bonaventura, BONAVENTURE means "good fortune."
Boy/Male
Hebrew
God has taken.
DATA DEFINITION-LANGUAGE
DATA DEFINITION-LANGUAGE
DATA DEFINITION-LANGUAGE
DATA DEFINITION-LANGUAGE
DATA DEFINITION-LANGUAGE
adv.
In a definitive manner.
a.
Conclusive; decisive; definitive; final.
v. t.
To note the time of writing or executing; to express in an instrument the time of its execution; as, to date a letter, a bond, a deed, or a charter.
n. pl.
See Datum.
n.
The definition and explanation of terms; a glossary.
v. t.
To note or fix the time of, as of an event; to give the date of; as, to date the building of the pyramids.
a.
Relating to definition; of the nature of a definition; employed in defining.
n.
The fruit of the date palm; also, the date palm itself.
n.
Definition; logical direction.
n.
Description; sort.
n.
The act of defining; definition; description.
n.
That addition to a writing, inscription, coin, etc., which specifies the time (as day, month, and year) when the writing or inscription was given, or executed, or made; as, the date of a letter, of a will, of a deed, of a coin. etc.
n.
Distinctness or clearness, as of an image formed by an optical instrument; precision in detail.
a.
Limiting; determining; as, a definitive word.
n.
An exact enunciation of the constituents which make up the logical essence.
n.
The act of defining; determination of the limits; as, a telescope accurate in definition.
n.
Act of ascertaining and explaining the signification; a description of a thing by its properties; an explanation of the meaning of a word or term; as, the definition of "circle;" the definition of "wit;" an exact definition; a loose definition.
a.
Definitive; determinate; final.
n.
The point of time at which a transaction or event takes place, or is appointed to take place; a given point of time; epoch; as, the date of a battle.
pl.
of Datum