require ibm_db specified module could not be found - database

Question

I’m trying to install the “ibm_db” gem and verify the installation. I’m running on Windows 7 and I’m trying to use 32bit for everything. The database that I need to connect to is DB2 on an IBM iSeries. Below are the steps I’m using so far.
• gem install “ibm_db”
• irb
• require “ibm_db”
I get the following results:
c:\Users\Bob\RubymineProjects\beginruby>gem install ibm_db
Fetching: ibm_db-2.5.11-x86-mingw32.gem (100%)
Successfully installed ibm_db-2.5.11-x86-mingw32
1 gem installed
Installing ri documentation for ibm_db-2.5.11-x86-mingw32...
Installing RDoc documentation for ibm_db-2.5.11-x86-mingw32...
c:\Users\Bob\RubymineProjects\beginruby>gem list
*** LOCAL GEMS ***
abstract (1.0.0)
actionmailer (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
actionpack (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
activemodel (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
activerecord (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
activeresource (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
activesupport (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
addressable (2.3.2)
annotate (2.5.0, 2.4.1.beta1, 2.4.0)
archive-tar-minitar (0.5.2)
arel (3.0.2, 2.2.3, 2.0.10, 1.0.1)
autotest (4.4.6, 4.3.2)
autotest-fsevent (0.2.8)
autotest-growl (0.2.16)
autotest-rails (4.1.2)
autotest-rails-pure (4.1.2, 4.1.0)
bcrypt-ruby (3.0.1 x86-mingw32)
bigdecimal (1.1.0)
bootstrap-sass (2.2.1.1, 2.0.0)
bootstrap-will_paginate (0.0.9, 0.0.6)
builder (3.1.4, 3.0.4, 2.1.2)
bundler (1.2.3, 1.0.22)
capybara (2.0.1, 2.0.0, 1.1.3, 1.1.2)
childprocess (0.3.6)
coderay (1.0.8)
coffee-rails (3.2.2, 3.1.1)
coffee-script (2.2.0)
coffee-script-source (1.4.0)
columnize (0.3.6)
cucumber (1.2.1)
cucumber-rails (1.3.0, 1.2.1)
database_cleaner (0.9.1, 0.7.0)
debugger-ruby_core_source (1.1.5)
diff-lcs (1.1.3)
erubis (2.7.0, 2.6.6)
excon (0.16.10)
execjs (1.4.0)
factory_girl (4.1.0, 2.3.2, 1.3.3)
factory_girl_rails (4.1.0, 1.4.0, 1.0)
faker (1.1.2, 1.0.1, 0.3.1)
ffi (1.2.0 x86-mingw32, 1.1.5 x86-mingw32)
gherkin (2.11.5 x86-mingw32)
gravatar_image_tag (1.1.3, 1.0.0.pre2, 0.1.0)
guard (1.5.4)
guard-rspec (2.3.1, 2.3.0, 0.5.5)
guard-spork (1.4.0, 0.3.2)
heroku (2.33.3, 2.33.2, 2.33.1)
heroku-api (0.3.7, 0.3.6)
hike (1.2.1)
hpricot (0.8.6)
i18n (0.6.1, 0.5.0, 0.4.2)
ibm_db (2.5.11 x86-mingw32)
io-console (0.3)
journey (1.0.4)
jquery-rails (2.1.4, 2.1.3)
json (1.7.5, 1.5.4)
launchy (2.1.2)
libwebsocket (0.1.7.1, 0.1.6.1, 0.1.6)
linecache19 (0.5.13, 0.5.12)
listen (0.6.0, 0.5.3)
lumberjack (1.0.2)
mail (2.5.3, 2.5.2, 2.4.4, 2.3.3, 2.2.19)
method_source (0.8.1)
mime-types (1.19)
minitest (4.3.3, 4.3.2, 2.5.1)
multi_json (1.5.0, 1.4.0, 1.3.7, 1.2.0)
netrc (0.7.7)
nokogiri (1.5.5 x86-mingw32)
pg (0.14.1 x86-mingw32, 0.12.2 x86-mingw32)
polyglot (0.3.3)
pry (0.9.10 i386-mingw32)
rack (1.4.1, 1.3.6, 1.2.5)
rack-cache (1.2)
rack-mount (0.8.3, 0.6.14)
rack-ssl (1.3.2)
rack-test (0.6.2, 0.5.7)
rails (3.2.9, 3.0.12, 3.0.1)
railties (3.2.9, 3.2.7, 3.2.3, 3.1.8, 3.0.12, 3.0.1)
rake (10.0.3, 10.0.2, 10.0.1, 0.9.2.2)
rbx-require-relative (0.0.9)
rdiscount (1.6.8)
rdoc (3.12, 3.9.4)
RedCloth (4.2.9 x86-mingw32)
rest-client (1.6.7)
rspec (2.12.0, 2.6.0)
rspec-core (2.6.4)
rspec-expectations (2.12.0, 2.6.0)
rspec-mocks (2.12.0, 2.10.1, 2.9.0, 2.6.0)
rspec-rails (2.12.0, 2.6.1)
ruby-debug-base19x (0.11.30.pre10)
ruby-debug-ide (0.4.17.beta14)
ruby_core_source (0.1.5)
rubyzip (0.9.9)
sass (3.3.0.alpha.16, 3.2.4, 3.2.3)
sass-rails (3.2.5, 3.2.4, 3.1.6)
selenium-webdriver (2.27.1, 2.26.0)
slop (3.3.3)
spork (0.9.2, 0.9.0.rc8 x86-mingw32)
sprockets (2.8.1, 2.2.2, 2.2.1, 2.1.3, 2.0.4)
sqlite3 (1.3.6 x86-mingw32, 1.3.5 x86-mingw32, 1.3.4 x86-mingw32)
sqlite3-ruby (1.3.3)
sys-uname (0.9.0 x86-mingw32)
thor (0.16.0, 0.14.6)
tilt (1.3.3)
treetop (1.4.12)
tzinfo (0.3.35)
uglifier (1.3.0, 1.2.3)
webrat (0.7.3, 0.7.1)
websocket (1.0.4, 1.0.3, 1.0.2)
will_paginate (3.0.3, 3.0.pre2)
win32-process (0.7.0)
win32console (1.3.2 x86-mingw32)
xpath (1.0.0, 0.1.4)
ZenTest (4.8.3, 4.8.2)
c:\Users\Bob\RubymineProjects\beginruby>irb
irb(main):001:0> gem 'ibm_db'
=> true
rb(main):002:0> require 'ibm_db'
LoadError: 126: The specified module could not be found. - C:/Ruby193/lib/ruby
/gems/1.9.1/gems/ibm_db-2.5.11-x86-mingw32/lib/mswin32/rb19x/ibm_db.so
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:i
n `require'
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:i
n `rescue in require'
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:i
n `require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ibm_db-2.5.11-x86-mingw32/lib/m
swin32/ibm_db.rb:1:in `<top (required)>'
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:i
n `require'
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:i
n `require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ibm_db-2.5.11-x86-mingw32/lib/i
bm_db.rb:1:in `<top (required)>'
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:i
n `require'
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:i
n `require'
from (irb):2
from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):003:0>

Answer 1

Put in your irb console (windows):
require 'mswin32/ibm_db'
conn = IBM_DB::connect("DATABASE","db2admin","password")
Of course, you can do any operation with this connection from irb for test your ibm_db gem, for example if it working correctly.