Chapter 3. Joins

   

Most things in life are not self-contained. There is not one shop where you will find all your requirements. This is valid for database tables as well. Quite often, you need information from more than one table. The SQL construct that combines data from two or more tables is called a join. This chapter takes you into the details of joins, their types, and their usage.



Mastering Oracle SQL
Mastering Oracle SQL, 2nd Edition
ISBN: 0596006322
EAN: 2147483647
Year: 2003
Pages: 154

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net