Transcript MySQL, PostgreSQL and Rails

MySQL, PostgreSQL
and Rails
A polemic
Pity the poor
programmer
Slaving away in the bit
mines
Just store my
data!
<polemic>
Network effect
Features
PostgreSQL
MySQL
Features
Clustering
Multiple table types
..?
MySQL
PostgreSQL
Procedural
Advanced Rules,
Stored Procedures, Triggers Languages
• pgSQL (Oracle)
• Tcl
• Perl
• Python
• Java
• PHP
•R
• Ruby
• Scheme
• sh
Genetic Query Optimizer
Functional/Partial
Indexes
Oracle
Compatibility
Speed
http://tweakers.net/reviews/657/5/database-test-dual-intel-xeon-5160-pagina-5.html
http://www.spec.org/jAppServer2004/results/jAppServer2004.html
Licence
From the MySQL website
From the MySQL website
http://www.kitebird.com/articles/rubymysql.html
PostgreSQL Data Base Management System
Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group Portions Copyright (c)
1994-1996 Regents of the University of California
Permission to use, copy, modify, and distribute this software and its documentation for any purpose,
without fee, and without a written agreement is hereby granted, provided that the above copyright
notice and this paragraph and the following two paragraphs appear in all copies.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
The PostgreSQL
license
</polemic>
On clever
databases
We took a pretty radical stand: Stored
procedures and all things that make
your database clever are evil
— DHH
Application database
✔
Integration database
Complex processes
Recursive structures
(etc)
•
•
Smart databases &
Rails
Maintain with migrations
..?
Fin
Questions
Postgres with Rails