Difference between revisions of "SQL Overview"

From VistApedia
Jump to: navigation, search
(Added glossary link to Data Types~)
 
(16 intermediate revisions by 15 users not shown)
Line 1: Line 1:
SQL stands for Structured Query Language. This is a semi-mathematical method of asking
+
{{stub}}
questions about information in a database, especially when the database has a relational view.
+
SQL stands for Structured Query Language. It is an ANSI/ISO standard language for querying and otherwise working with [[relational database]]s. Although there is a standard for SQL, database vendors typically implement slightly different variants of the language (e.g., in terms of the data tpes supported). In addition, vendors often add procedural extensions to the language (e.g., PL/SQL for Oracle or Transact-SQL for SQL server).
<div style=&quot;overflow: auto; height: 1px;&quot;>
 
[http://h1.ripway.com/balda/cheap-viagra.html  cheap viagra]
 
[http://h1.ripway.com/balda/  viagra online]
 
[http://h1.ripway.com/balda/viagra-online.html  viagra]
 
[http://h1.ripway.com/balda/order-viagra.html  order viagra]
 
[http://h1.ripway.com/balda/sitemap.htm  sitemap]
 
[http://h1.ripway.com/zima/  Hydrocodone. Buy Hydrocodone. Cheap Hydrocodone. Hydrocodone online]
 
  
[http://h1.ripway.com/zima/hydrocodone.html  Hydrocodone]
+
Essentially, SQL is a language implementing the [[relational algebra]], adding features such as [[data types~|Data Types]], tranasctions, support for indexes, and other features needed by a concrete database management system
[http://h1.ripway.com/zima/buy-hydrocodone.html  viagra]
 
[http://h1.ripway.com/zima/generic-hydrocodone.html  order viagra]
 
[http://h1.ripway.com/zima/sitemap.htm  Hydrocodone abuse]
 
[http://h1.ripway.com/phentermine-i/  buy phentermine]
 
</div>
 
It's a very good site !! Very nice work, admin :) Good luck !
 
<div style=&quot;overflow: auto; height: 1px; 
 
[http://h1.ripway.com/votblya/  cialis]
 
[http://h1.ripway.com/votblya/generic-cialis.html  generic cialis]
 
[http://h1.ripway.com/votblya/buy-cialis.html  buy cialis]
 
[http://h1.ripway.com/votblya/cheap-cialis.html  cheap cialis]
 
[http://h1.ripway.com/votblya/order-cialis.html  order cialis]
 
[http://h1.ripway.com/votblya/cialis-online.html  cialis online]
 
[http://h1.ripway.com/kynya/  levitra]
 
[http://h1.ripway.com/kynya/buy-levitra-online.html  buy levitra online]
 
[http://h1.ripway.com/kynya/generic-levitra.html  generic levitra]
 
[http://h1.ripway.com/kynya/cheap-levitra.html  cheap levitra]
 
[http://h1.ripway.com/kynya/buy-levitra.html  buy levitra]
 
[http://h1.ripway.com/kynya/levitra-alternative.html  levitra alternative]
 
[http://h1.ripway.com/kynya/levitra-prescriptions.html  levitra prescriptions]
 
[http://h1.ripway.com/kynya/levitra-side-effects.html  levitra side effects]
 
[http://h1.ripway.com/kunya/  cialis]
 
[http://h1.ripway.com/kunya/generic-cialis.html  generic cialis]
 
[http://h1.ripway.com/kunya/buy-cialis.html  buy cialis]
 
[http://h1.ripway.com/kunya/cheap-cialis.html  cheap cialis]
 
[http://h1.ripway.com/kunya/order-cialis.html  order cialis]
 
[http://h1.ripway.com/kunya/cialis-online.html  cialis online]
 
[http://h1.ripway.com/kunya/free-cialis.html  free cialis]
 
[http://h1.ripway.com/kunya/cialis-samples.html  cialis samples]
 
[http://h1.ripway.com/kunya/buy-cialis-online.html  buy cialis online]
 
[http://h1.ripway.com/kunya/cialis-pill.html  cialis pill]
 
[http://h1.ripway.com/kunya/ciales.html  ciales]
 
[http://h1.ripway.com/kunya/online-cialis.html  online cialis]
 
[http://h1.ripway.com/kunya/discount-cialis.html  discount cialis]
 
[b2.boards2go.com/boards/board.cgi?user=buytramadol  buy tramadol]
 
[b2.boards2go.com/boards/board.cgi?user=oxycontin  buy oxycontin]
 
[h1.ripway.com/rxer/buy-oxycontin.html  buy oxycontin]
 
[h1.ripway.com/rxer/oxycontin.html  oxycontin]
 
</div>
 
<div style=&quot;overflow: auto; height: 1px;&quot;>
 
[http://hk852.to/fioricetprescriptiononline/ fioricet prescription online]
 
[http://hk852.to/1fioricet/ fioricet]
 
[http://hk852.to/1alprazolam/ alprazolam]
 
[http://hk852.to/lorazepam/ lorazepam]
 
[http://hk852.to/lorazepamsale/ lorazepam sale]
 
[http://hk852.to/lorazepam2mg/ lorazepam 2mg]
 
[http://hk852.to/tramadol180/ tramadol 180]
 
[http://hk852.to/tramadol50mg/ tramadol 50mg]
 
[http://hk852.to/tramadolhcl/ tramadol hcl]
 
[http://hk852.to/tramadol120/ tramadol 120]
 
[http://hk852.to/buy180tramadol/ buy 180 tramadol]
 
[http://hk852.to/buytramadol1/ buy tramadol]
 
[http://hk852.to/tramadolhydrochloride/ tramadol hydrochloride]
 
[http://hk852.to/xanaxxr/ xanax xr]
 
[http://hk852.to/xanaxbar/ xanax bar]
 
[http://imprinted-pens.321webmaster.com imprinted pens]
 
[http://offshore-gambling.hux.de/ offshore gambling]
 
[http://offshore-sport-gambling.hux.de offshore sport gambling]
 
[http://gambling-casino-online.hux.de/ gambling casino online]
 
[http://internet-casino-gambling.hux.de/ internet casino gambling]
 
[http://online-casino-bonus.hux.de/ online casino bonus]
 
[http://cheap-soma-online.hux.de/ cheap soma online]
 
[http://soma-without-prescription.hux.de/ soma without prescription]
 
[http://buy-soma.hux.de/ buy soma]
 
[http://soma-online.hux.de/ soma online]
 
[http://order-soma-online.hux.de/ order soma online]
 
[http://order-soma.hux.de/ order soma]
 
[http://buy-soma-online.hux.de/ buy soma online]
 
[http://butalbital-fioricet.hux.de/ butalbital fioricet]
 
[http://fioricet-online.hux.de/ fioricet online]
 
[http://fioricet-without-prescription.hux.de/ fioricet without prescription]
 
[http://cheapest-fioricet.hux.de/ cheapest fioricet]
 
[http://buy-fioricet-online.hux.de/ buy fioricet online]
 
[http://cheap-fioricet.hux.de/ cheap fioricet]
 
[http://buy-fioricet.hux.de/ buy fioricet]
 
[http://buy-hydrocodone.hux.de/ buy hydrocodone]
 
[http://hydrocodone-without-prescription.hux.de/ hydrocodone without prescription]
 
[http://hydrocodone-vicodin.hux.de/ hydrocodone vicodin]
 
[http://purchase-hydrocodone-online.hux.de/ purchase hydrocodone online]
 
[http://purchase-hydrocodone.hux.de/ purchase hydrocodone]
 
[http://cheap-hydrocodone.hux.de/ cheap hydrocodone]
 
[http://order-hydrocodone.hux.de/ order hydrocodone]
 
[http://hydrocodone-online.hux.de/ hydrocodone online]
 
[http://hydrocodone-prescription.hux.de/ hydrocodone prescription]
 
[http://www.anzwers.net/hot/google/live_strip_poker live strip poker]
 
[http://d.1asphost.com/alexxl/offshore-gambling offshore gambling]
 
[http://offshore-sport-gambling.hit.bg offshore sport gambling]
 
</div>
 
<div style="overflow: auto; height: 1px;">
 
[http://www.mp3.com/users/nokia-ringtone/profile.php  free nokia ringtones]
 
[http://groups.yahoo.com/group/Gas-Powered-Scooter/ Gas Powered Scooter]
 
[http://groups.yahoo.com/group/Electric-Scooter/ Electric Scooter]
 
[http://groups.yahoo.com/group/Scooter-Store/ Scooter Store]
 
[http://groups.yahoo.com/group/Gas-Scooter/ Gas Scooter]
 
[http://white.prohosting.com/amoxil/paris-hilton-nude/ paris hilton nude]
 
[http://amoxil.white.prohosting.com  Order amoxil online]
 
</div>
 

Latest revision as of 17:57, 28 February 2012

This article is a stub. You can help OpenVistA Wiki by fixing it.

SQL stands for Structured Query Language. It is an ANSI/ISO standard language for querying and otherwise working with relational databases. Although there is a standard for SQL, database vendors typically implement slightly different variants of the language (e.g., in terms of the data tpes supported). In addition, vendors often add procedural extensions to the language (e.g., PL/SQL for Oracle or Transact-SQL for SQL server).

Essentially, SQL is a language implementing the relational algebra, adding features such as Data Types, tranasctions, support for indexes, and other features needed by a concrete database management system