dict.org

The DICT Development Group


Search for:
Search type:
Database:

Database copyright information
Server information


2 definitions found
 for SQL
From V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) :

  SQL
         Structured Query Language (ISO 9075, DB, 4GL)
         

From The Free On-line Dictionary of Computing (30 December 2018) :

  SQL
  Structured Query Language
  
      /S Q L/ An industry-standard
     language for creating, updating and, querying relational
     database management systems.
  
     SQL was developed by IBM in the 1970s for use in System R.
     It is the de facto standard as well as being an ISO and
     ANSI standard.  It is often embedded in general purpose
     programming languages.
  
     The first SQL standard, in 1986, provided basic language
     constructs for defining and manipulating tables of data; a
     revision in 1989 added language extensions for referential
     integrity and generalised integrity constraints.  Another
     revision in 1992 provided facilities for schema manipulation
     and data administration, as well as substantial enhancements
     for data definition and data manipulation.
  
     Development is currently underway to enhance SQL into a
     computationally complete language for the definition and
     management of persistent, complex objects.  This includes:
     generalisation and specialisation hierarchies, multiple
     inheritance, user defined data types, triggers and
     assertions, support for knowledge based systems,
     recursive query expressions, and additional data
     administration tools.  It also includes the specification of
     abstract data types (ADTs), object identifiers, methods,
     inheritance, polymorphism, encapsulation, and all of the
     other facilities normally associated with object data
     management.
  
     The emerging SQL3 standard is expected to be complete in
     1998.
  
     According to Allen G. Taylor, SQL does __not__ stand for
     "Structured Query Language".  That, like "SEQUEL" (and its
     pronunciation /see'kw*l/), was just another unofficial name
     for a precursor of SQL.  However, the IBM SQL Reference manual
     for DB2 and Craig Mullins's "DB2 Developer's Guide" say SQL
     __does__ stand for "Structured Query Language".
  
     http://jcc.com/sql_stnd.html)">SQL Standards (http://jcc.com/sql_stnd.html).
  
     An SQL parser
     ftp://ftp.ora.com/published/oreilly/nutshell/lexyacc/)">(ftp://ftp.ora.com/published/oreilly/nutshell/lexyacc/) is
     described in "Lex & Yacc", by Levine, Mason & Brown published
     by O'Reilly.
  
     The 1995 SQL Reunion: People, Projects, and Politics
     http://mcjones.org/System_R/SQL_Reunion_95/)">(http://mcjones.org/System_R/SQL_Reunion_95/).
  
     ["A Guide to the SQL Standard", C.J. Date, A-W 1987].
  
     ["SQL for Dummies", Allen G. Taylor, IDG Books Worldwide].
  
     (2005-11-17)
  

Contact=webmaster@dict.org Specification=RFC 2229