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Query
In general, a query is a form of questioning, in a line of inquiry. A query may also refer to: The Queries, a set of 31 questions outlined by Isaac Newton
Query string
the internet, a query string is the part of a uniform resource locator (URL) which assigns values to specified parameters. The query string commonly includes
Query language
Query languages or data query languages (DQLs) are computer languages used to make queries in databases and information systems. Broadly, query languages
SQL
SQL (/ˌɛsˌkjuːˈɛl/ (listen) S-Q-L, /ˈsiːkwəl/ "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for
URL
be referred to as a 'slug'. An optional query component preceded by a question mark (?), containing a query string of non-hierarchical data. Its syntax
Database
writing and querying data. In the 2000s, non-relational databases became popular, referred to as NoSQL because they use different query languages. Formally
Relational database
Virtually all relational database systems use SQL (Structured Query Language) for querying and maintaining the database. This model organizes data into
Select (SQL)
the query into a "query plan" which may vary between executions, database versions and database software. This functionality is called the "query optimizer"
Query plan
A query plan (or query execution plan) is an ordered set of steps used to access data in a SQL relational database management system. This is a specific
RDF query language
An RDF query language is a computer language, specifically a query language for databases, able to retrieve and manipulate data stored in Resource Description