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This category lists those domain-specific programming languages targeted at performing database queries. Subcategories This category has the following 5 subcategories, out of 5 total.
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 systems. In database systems, query languages rely on strict theory to retrieve information. [1] A well known example is the Structured Query Language (SQL).
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, as PICK's flexible dictionary structure meant that file and attribute names could be given aliases in any natural language.
A compiled version of an Access database (file extensions .MDE /ACCDE or .ADE; ACCDE only works with Access 2007 or later) can be created to prevent users from accessing the design surfaces to modify module code, forms, and reports. An MDE or ADE file is a Microsoft Access database file with all modules compiled and all editable source code ...
These sub-languages are mainly categorized into four categories: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML). Sometimes a transaction control language (TCL) [ 1 ] is argued to be part of the sub-language set as well.
Open Database Connectivity – Query language – Query optimizer – component of a database management system that attempts to determine the most efficient way to execute a query. Query plan – ordered set of steps used to access or modify information in a SQL relational database management system. Also called a "query execution plan".
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 explicitly compose them in SQL, and without even needing to ...
41 Query languages. ... dBase a relational database access language; ... List-based languages are a type of data-structured language that are based on the list data ...