title: The Essence of SQL : A Guide to Learning Most of SQL in the Least Amount of Time
author: David Rozenshtein
description: David Rozenshtein is an Associate Professor of Computer Science at Long Island University.
zlib_text: 2 
   
  Hugh Darwen
  SQL: A Comparative Survey
  Download free eBooks at bookboon.com
  
  3 
   
  SQL: A Comparative Survey
  2th edition
  © 2014 Hugh Darwen & bookboon.com
  ISBN 978-87-403-0778-8
  Download free eBooks at bookboon.com
  
  SQL: A Comparative Survey
  4 
  Contents
  Contents
   
  Preface 
  9
  1 
  Introduction 
  11
  1.1 
  Introduction 
  11
  1.5 
  “Collection of Variables” 
  13
  1.6 
  What Is an SQL Database? 
  14
  1.7 
  “Table” Not Equal to “Relation” 
  15
  1.8 
  Anatomy of a Table 
  16
  1.9 
  What Is a DBMS? 
  17
  1.10 
  SQL Is a Database Language 
  17
  1.11 
  What Does an SQL DBMS Do? 
  18
  1.12 
  Creating and Destroying Base Tables 
  18
  1.13 
  Taking Note of Integrity Rules 
  20
  1.14 
  Taking Note of Authorisations 
  21
  1.15 
  Updating Variables 
  22
  1.16 
  Providing Results of Queries 
  25
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