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sql

sql

 

  2  definitions  found 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  SQL 
 
  database,  standard>  /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". 
 
  {SQL  Standards  (http://www.jcc.com/sql_stnd.html)}. 
 
  {An  SQL  parser 
  (ftp://ftp.uu.net/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://www.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]. 
 
  (2000-07-07) 
 
 
 
  From  V.E.R.A.  --  Virtual  Entity  of  Relevant  Acronyms  13  March  2001  [vera]: 
 
  SQL 
  Structured  Query  Language  (ISO  9075,  DB  4GL)