|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Ruby/DBI - a database independent interface for accessing databases - similar to Perl's DBI$Id: index.rd,v 1.26 2002/10/22 15:25:38 mneumann Exp $ LicenseCopyright (c) 2001, 2002 Michael Neumann <neumann@s-direktnet.de> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. This is the BSD license which is less restrictive than GNU's GPL (General Public License). Contributors
Database Drivers (DBDs)
ChangeLogSee <URL:http://ruby-dbi.sourceforge.net/ChangeLog.html>. ToDoSee <URL:http://ruby-dbi.sourceforge.net/ToDo.html>. DownloadRuby/DBI is available for from the SourceForge project page. If you're running FreeBSD or NetBSD, have a look at their package collections. FreeBSD has for DBI and each DBD an easy to install package, NetBSD currently only for PostgreSQL but more is to come. A NetBSD package for MySQL is available at <URL:http://www.fantasy-coders.de/ruby/ruby-mysql-2.4.tar.gz>. InstallationAll available DBDs come with this package, but you should only install the DBDs you really need. To install all:ruby setup.rb config ruby setup.rb setup ruby setup.rb install To install dbi and some DBDs:ruby setup.rb config --with=dbi,dbd_pg.... ruby setup.rb setup ruby setup.rb install Choose the packages to install by specifing them after the option Mailing ListA mailinglist for DBI-specific discussions is available from the SourceForge project page. Our former mailing-list was at <URL:http://groups.yahoo.com/group/ruby-dbi-talk>; please, don't use it! DocumentationSee the directories lib/*/doc or ext/*/doc for DBI and DBD specific informations. The DBI specification is lib/dbi/doc/DBI_SPEC or lib/dbi/doc/html/DBI_SPEC.html or available from WWW at <URL:http://ruby-dbi.sourceforge.net/DBI_SPEC.html>. The DBD specification (how to write a database driver) is lib/dbi/doc/DBD_SPEC or lib/dbi/doc/html/DBD_SPEC.html or available from WWW at <URL:http://ruby-dbi.sourceforge.net/DBD_SPEC.html>. Applicationssqlsh.rbThe SQL command line interpreter sqlsh.rb is available in directory bin/commandline. It gets installed by default. ExamplesExamples can be found in the examples/ subdirectory. In this directory there is the file proxyserver.rb which has to be run if you use the DBD::Proxy, to access databases remote over a TCP/IP network. A simple examplerequire 'dbi' # connect to a datbase dbh = DBI.connect('DBI:Mysql:test', 'testuser', 'testpwd') puts "inserting..." 1.upto(13) do |i| sql = "insert into simple01 (SongName, SongLength_s) VALUES (?, ?)" dbh.do(sql, "Song #{i}", "#{i*10}") end puts "selecting..." sth=dbh.prepare('select * from simple01') sth.execute while row=sth.fetch do p row end puts "deleting..." dbh.do('delete from simple01 where internal_id > 10') dbh.disconnect The same using Ruby's featuresrequire 'dbi' DBI.connect('DBI:Mysql:test', 'testuser', 'testpwd') do | dbh | puts "inserting..." sql = "insert into simple01 (SongName, SongLength_s) VALUES (?, ?)" dbh.prepare(sql) do | sth | 1.upto(13) { |i| sth.execute("Song #{i}", "#{i*10}") } end puts "selecting..." dbh.select_all('select * from simple01') do | row | p row end puts "deleting..." dbh.do('delete from simple01 where internal_id > 10') end |