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Data definition language

Index Data definition language

A data definition language or data description language (DDL) is a syntax similar to a computer programming language for defining data structures, especially database schemas. [1]

40 relations: Character encoding, CODASYL, Collation, Data control language, Data integrity, Data manipulation language, Data model, Data structure, Database, Database index, Database schema, Database transaction, Delete (SQL), Field (computer science), Foreign key, Formal language, Insert (SQL), Microsoft SQL Server, PostgreSQL, Primary key, Programming language, Query language, Record (computer science), Referential integrity, Relational database management system, Rollback (data management), Select (SQL), Set (abstract data type), SQL, SQL-92, SQL/Schemata, SQL:2003, Stored procedure, Syntax (programming languages), Table (database), Truncate (SQL), Update (SQL), View (SQL), XML, XML Schema (W3C).

Character encoding

Character encoding is used to represent a repertoire of characters by some kind of encoding system.

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CODASYL

CODASYL, the 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 on many computers.

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Collation

Collation is the assembly of written information into a standard order.

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Data control language

A data control language (DCL) is a syntax similar to a computer programming language used to control access to data stored in a database (Authorization).

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Data integrity

Data integrity is the maintenance of, and the assurance of the accuracy and consistency of, data over its entire life-cycle, and is a critical aspect to the design, implementation and usage of any system which stores, processes, or retrieves data.

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Data manipulation language

A data manipulation language (DML) is a computer programming language used for adding (inserting), deleting, and modifying (updating) data in a database.

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Data model

A data model (or datamodel) is a set of tables, linked by relationships and is an abstract model that organizes elements of data and standardizes how they relate to one another and to properties of the real world entities.

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Data structure

In computer science, a data structure is a data organization and storage format that enables efficient access and modification.

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Database

A database is an organized collection of data, stored and accessed electronically.

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Database index

A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure.

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Database schema

The database schema of a database system is its structure described in a formal language supported by the database management system (DBMS).

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Database transaction

A transaction symbolizes a unit of work performed within a database management system (or similar system) against a database, and treated in a coherent and reliable way independent of other transactions.

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Delete (SQL)

In the database structured query language (SQL), the DELETE statement removes one or more records from a table.

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Field (computer science)

In computer science, data that has several parts, known as a record, can be divided into fields.

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Foreign key

In the context of relational databases, a foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table or the same table.

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Formal language

In mathematics, computer science, and linguistics, a formal language is a set of strings of symbols together with a set of rules that are specific to it.

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Insert (SQL)

An SQL INSERT statement adds one or more records to any single table in a relational database.

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Microsoft SQL Server

Microsoft SQL Server is a relational database management system developed by Microsoft.

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PostgreSQL

PostgreSQL, often simply Postgres, is an object-relational database management system (ORDBMS) with an emphasis on extensibility and standards compliance.

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Primary key

In the relational model of databases, a primary key is a specific choice of a minimal set of attributes (columns) that uniquely specify a tuple (row) in a relation (table).

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Programming language

A programming language is a formal language that specifies a set of instructions that can be used to produce various kinds of output.

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Query language

Query languages or data query languages (DQLs) are computer languages used to make queries in databases and information systems.

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Record (computer science)

In computer science, a record (also called a structure, struct, or compound data) is a basic data structure.

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Referential integrity

Referential integrity is a property of data stating references within it are valid.

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Relational database management system

A relational database management system (RDBMS) is a database management system (DBMS) based on the relational model invented by Edgar F. Codd at IBM's San Jose Research Laboratory.

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Rollback (data management)

In database technologies, a rollback is an operation which returns the database to some previous state.

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Select (SQL)

The SQL SELECT statement returns a result set of records from one or more tables.

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Set (abstract data type)

In computer science, a set is an abstract data type that can store unique values, without any particular order.

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SQL

SQL (S-Q-L, "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS).

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SQL-92

SQL-92 was the third revision of the SQL database query language.

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SQL/Schemata

The SQL/Schemata, or Information and Definition Schemas, part to the SQL standard is defined by ISO/IEC 9075-11:2008.

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SQL:2003

SQL:2003 is the fourth revision of the SQL database query language.

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Stored procedure

A stored procedure (also termed proc, storp, sproc, StoPro, StoredProc, StoreProc, sp, or SP) is a subroutine available to applications that access a relational database management system (RDBMS).

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Syntax (programming languages)

In computer science, the syntax of a computer language is the set of rules that defines the combinations of symbols that are considered to be a correctly structured document or fragment in that language.

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Table (database)

A table is a collection of related data held in a structured format within a database.

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Truncate (SQL)

In SQL, the TRUNCATE TABLE statement is a (DDL) operation that marks the extents of a table for deallocation (empty for reuse).

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Update (SQL)

An SQL UPDATE statement changes the data of one or more records in a table.

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View (SQL)

In a database, a view is the result set of a stored query on the data, which the database users can query just as they would in a persistent database collection object.

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XML

In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.

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XML Schema (W3C)

XSD (XML Schema Definition), a recommendation of the World Wide Web Consortium (W3C), specifies how to formally describe the elements in an Extensible Markup Language (XML) document.

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Redirects here:

Alter (SQL), CREATE (SQL), Create (SQL), Create (sql), Create sql, Data Definition Language, Data Description Language, Data definition, Drop (SQL), Drop sql, Sql drop.

References

[1] https://en.wikipedia.org/wiki/Data_definition_language

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