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  2. Microsoft Access - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Access

    Microsoft Access. Microsoft Access is a database management system (DBMS) from Microsoft that combines the relational Access Database Engine (ACE) with a graphical user interface and software-development tools. It is a member of the Microsoft 365 suite of applications, included in the Professional and higher editions or sold separately.

  3. Query plan - Wikipedia

    en.wikipedia.org/wiki/Query_plan

    Query plan. A query plan (or query execution plan) is a sequence of steps used to access data in a SQL relational database management system. This is a specific case of the relational model concept of access plans. Since SQL is declarative, there are typically many alternative ways to execute a given query, with widely varying performance.

  4. Query by Example - Wikipedia

    en.wikipedia.org/wiki/Query_by_Example

    Query by Example. Query by Example ( QBE) is a database query language for relational databases. It was devised by Moshé M. Zloof at IBM Research during the mid-1970s, in parallel to the development of SQL. [1] It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions.

  5. SPARQL - Wikipedia

    en.wikipedia.org/wiki/SPARQL

    SPARQL (pronounced "sparkle", a recursive acronym [2] 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 data stored in Resource Description Framework (RDF) format. [3] [4] It was made a standard by the RDF Data Access Working Group (DAWG ...

  6. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    Structured Query Language ( SQL) ( pronounced S-Q-L; historically "sequel") [4] [5] is a domain-specific language used to manage data, especially in a relational database management system (RDBMS). It is particularly useful in handling structured data, i.e., data incorporating relations among entities and variables.

  7. Resource Description Framework - Wikipedia

    en.wikipedia.org/wiki/Resource_Description_Framework

    Resource Description Framework. The Resource Description Framework ( RDF) is a World Wide Web Consortium (W3C) standard originally designed as a data model for metadata. It has come to be used as a general method for description and exchange of graph data. RDF provides a variety of syntax notations and data serialization formats, with Turtle ...

  8. XQuery - Wikipedia

    en.wikipedia.org/wiki/XQuery

    XQuery. XQuery ( XML Query) is a query and functional programming language that queries and transforms collections of structured and unstructured data, usually in the form of XML, text and with vendor-specific extensions for other data formats ( JSON, binary, etc.). The language is developed by the XML Query working group of the W3C.

  9. Microsoft Query - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Query

    Microsoft Query is a visual method of creating database queries using examples based on a text string, the name of a document or a list of documents. The 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 searches without having to ...