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Ruby/DBI, a database abstraction layer and interface
Home Page: http://ruby-dbi.rubyforge.org
License: Other
This project forked from pistos/ruby-dbi
Ruby/DBI, a database abstraction layer and interface
Home Page: http://ruby-dbi.rubyforge.org
License: Other
= Description The DBI package is a vendor independent interface for accessing databases. It is similar, but not identical to, Perl's DBI module. = Synopsis require 'dbi' # Connect to a database, old style dbh = DBI.connect('DBI:Mysql:test', 'testuser', 'testpwd') # Insert some rows, use placeholders 1.upto(13) do |i| sql = "insert into simple01 (SongName, SongLength_s) VALUES (?, ?)" dbh.do(sql, "Song #{i}", "#{i*10}") end # Select all rows from simple01 sth = dbh.prepare('select * from simple01') sth.execute # Print out each row while row=sth.fetch do p row end # Close the statement handle when done sth.finish # Don't prepare, just do it! dbh.do('delete from simple01 where internal_id > 10') # And finally, disconnect dbh.disconnect # Same example, but a little more Ruby-ish DBI.connect('DBI:Mysql:test', 'testuser', 'testpwd') do | dbh | sql = "insert into simple01 (SongName, SongLength_s) VALUES (?, ?)" dbh.prepare(sql) do | sth | 1.upto(13) { |i| sth.execute("Song #{i}", "#{i*10}") } end dbh.select_all('select * from simple01') do | row | p row end dbh.do('delete from simple01 where internal_id > 10') end = Prerequisites Ruby 1.8.6 or later is the test target, however you may have success with earlier 1.8.x versions of Ruby. = RubyForge Project General information: http://ruby-dbi.rubyforge.org Project information: http://rubyforge.org/projects/ruby-dbi/ Downloads: http://rubyforge.org/frs/?group_id=234 = Installation There are many database drivers (DBDs) available. You only need to install the DBDs for the database software that you will be using. == Gem setup: gem install dbi # One or more of: gem install dbd-mysql gem install dbd-pg gem install dbd-sqlite3 gem install dbd-sqlite == Without rubygems: ruby setup.rb config ruby setup.rb setup ruby setup.rb install == The bleeding edge: git clone git://hollensbe.org/git/ruby-dbi.git git checkout -b development origin/development Also available at git clone git://github.com/erikh/ruby-dbi.git = Available Database Drivers (DBDs) == DBD::MySQL MySQL Depends on the mysql-ruby package from http://www.tmtm.org/mysql or available from the RAA. == DBD::ODBC ODBC Depends on the ruby-odbc package (0.5 or later, 0.9.3 or later recommended) at http://www.ch-werner.de/rubyodbc or available from the RAA. Works together with unix-odbc. == DBD::OCI8 OCI8 (Oracle) Depends on the the ruby-oci8 package, available on the RAA and RubyForge. == DBD::Pg PostgreSQL Depends on the pg package, available on RubyForge. == DBD::SQLite SQLite (versions 2.x and earlier) Depends on the sqlite-ruby package, available on rubyforge. == DBD::SQLite3 SQLite 3.x Depends on the sqlite3-ruby package, available on rubyforge. = Additional Documentation See the directories doc/* for DBI and DBD specific information. The DBI specification is at doc/DBI_SPEC.rdoc. The DBD specification is at doc/DBD_SPEC.rdoc. = Articles == Tutorial: Using the Ruby DBI Module http://www.kitebird.com/articles/ruby-dbi.html = Applications == dbi The SQL command line interpreter dbi is available in directory bin/. It gets installed by default. = License Copyright (c) 2008 Erik Hollensbe Copyright (c) 2005-2006 Kirk Haines, Francis Hwang, Patrick May and Daniel Berger. Copyright (c) 2001, 2002, 2003, 2004 Michael Neumann <[email protected]> and others (see the beginning of each file for copyright holder information). All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. 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 Pistos Too much to specify. Infinite patience and help. Christopher Maujean Lots of initial help when reviving the project. Jun Mukai <[email protected]> Contributed initial SQLite3 DBD. John J. Fox IV Lots of help testing on multiple platforms. Kirk Haines One of the authors of the rewrite effort (January 2006). Francis Hwang One of the authors of the rewrite effort (January 2006). Patrick May One of the authors of the rewrite effort (January 2006). Daniel Berger One of the authors of the rewrite effort (January 2006). Michael Neumann Original author of Ruby/DBI; wrote the DBI and most of the DBDs. Rainer Perl Author of Ruby/DBI 0.0.4 from which many good ideas were taken. Jim Weirich Original author of DBD::Pg. Wrote additional code (e.g. sql.rb, testcases). Gave many helpful hints and comments. Eli Green Implemented DatabaseHandle#columns for Mysql and Pg. Masatoshi SEKI For his version of module BasicQuote in sql.rb. John Gorman For his case insensitive load_driver patch and parameter parser. David Muse For testing the DBD::SQLRelay and for his initial DBD. Jim Menard Extended DBD::Oracle for method columns. Joseph McDonald Fixed bug in DBD::Pg (default values in method columns). Norbert Gawor Fixed bug in DBD::ODBC (method columns) and proxyserver. James F. Hranicky Patch for DBD::Pg (cache PGResult#result in Tuples) which increased performance by a factor around 100. Stephen Davies Added method Statement#fetch_scroll for DBD::Pg. Dave Thomas Several enhancements. Brad Hilton Column coercing patch for DBD::Mysql. Sean Chittenden Originally a co-owner of the project. Submitted several patches and helped with lots of comments. MoonWolf Provided the quote/escape_byte patch for DBD::Pg, DBD::SQLite patch and Database#columns implementation. Further patches. Paul DuBois Fixed typos and formatting. Maintains DBD::Mysql. Tim Bates Bug fixes for Mysql and DBI. Brian Candler Zero-padding date/time/timestamps fix. Florian G. Pflug Discussion and helpful comments/benchmarks about DBD::Pg async_exec vs. exec. Oliver M. Bolzer Patches to support Postgres arrays for DBD::Pg. Stephen R. Veit ruby-db2 and DBD::DB2 enhancements. Dennis Vshivkov DBD::Pg patches Cail Borrell from frontbase.com For the Frontbase DBD and C interface.
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