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Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]
SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.
Ahh, gotcha; the latter example is correct but I can see the confusion. - AquilaFasciata (talk | contribs) 14:28, 18 April 2024 (UTC) It was historically named SEQUEL, but that doesn't mean it is true that it is historically pronounced "sequel." It is very common today, especially in the SQL Server community, to pronounce it "sequel."
SQL is a well known query language and data manipulation language for relational databases; XQuery is a query language for XML data sources; XPath is a declarative language for navigating XML documents; YQL is an SQL-like query language created by Yahoo! Search engine query languages, e.g., as used by Google [5] or Bing [6]
SQL Plus understands five categories of text: [1] SQL statements; PL/SQL blocks; SQL Plus internal commands, for example: environment control commands such as SET; environment monitoring commands such as SHOW; Comments; External commands prefixed by the ! char; Scripts can include all of these components.
QUEL is a relational database query language, based on tuple relational calculus, with some similarities to SQL.It was created as a part of the Ingres DBMS effort at University of California, Berkeley, based on Codd's earlier suggested but not implemented Data Sub-Language ALPHA.
This category lists articles about SQL statements, clauses, and keywords. See also ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License