How to connect to a DB2 database.

[Victor Reyes]

Hello Ruby world.
The platform:

ruby 1.8.2 (2004-07-29) [i386-mswin32]
Windows/XP
DB2 8.1.4
DBname = dvddbase

The questions:

1 - How do I talk (connect) to a DB2 database using Ruby?
2 - Any sample code that can be shared?

Thank you

Victor

 

[Michael Neumann]

Hello Ruby world.
The platform:

ruby 1.8.2 (2004-07-29) [i386-mswin32]
Windows/XP
DB2 8.1.4
DBname = dvddbase

The questions:

1 - How do I talk (connect) to a DB2 database using Ruby?
2 - Any sample code that can be shared?

You need Ruby/DBI and Ruby/DB2. See RAA (raa.ruby-lang.org).
http://ruby-dbi.rubyforge.org

A simple example:

require 'dbi'

DBI.connect('dbiB2:dvddbase', 'username', 'password') do |dbh|
p dbh.select_all('SELECT * FROM table')
end

Hope this helps.

Regards,

Michael

 

[Victor Reyes]

I noticed that I already have dbi installed as part of the 1.8.2 installation.
However, when I try to use it to test it, I get the following errors:

C:\Program Files\IBM\SQLLIB\BIN>ruby db2c.rb
C:/Ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:499:in `load_driver': is
not a class/module (TypeError)
from C:/Ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:401:in `_get_full_driver'
from C:/Ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:381:in `connect'
from db2c.rb:5

Any idea?

Thank you

 

[Michael Neumann]

I noticed that I already have dbi installed as part of the 1.8.2 installation.
However, when I try to use it to test it, I get the following errors:

C:\Program Files\IBM\SQLLIB\BIN>ruby db2c.rb
C:/Ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:499:in `load_driver': is
not a class/module (TypeError)
from C:/Ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:401:in `_get_full_driver'
from C:/Ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:381:in `connect'
from db2c.rb:5

Any idea?

Yes, you have to install Ruby/DB2, too ;-)

Regards,

Michael

 

[Victor Reyes]

Mike,
Thank you for your help so far.
The new problem now is installing Ruby/DB2.

Right from the beginning I have a problem. the "export" command does
not work under windows/XP. Second, even when I set the DB2DIR
environmental variable via the "set" command, it still does not work.

C:\$user\ruby\ruby-db2-0.4>export DB2DIR=C:/db2/SQLLIB/
'export' is not recognized as an internal or external command,
operable program or batch file.

C:\$user\ruby\ruby-db2-0.4>

or using the "set" command, which appears to work:

C:\$user\ruby\ruby-db2-0.4>set DB2DIR=C:/db2/SQLLIB/

C:\$user\ruby\ruby-db2-0.4>

C:\$user\ruby\ruby-db2-0.4>ruby setup.rb config
setup.rb:714: warning: don't put space before argument parentheses
entering config phase...
config done.

C:\$user\ruby\ruby-db2-0.4>

C:\$user\ruby\ruby-db2-0.4>ruby setup.rb setup
setup.rb:714: warning: don't put space before argument parentheses
entering setup phase...
C:/Ruby/bin/ruby extconf.rb
checking for SQLConnect() in db2cli.lib... no
ABORT: Could not locate DB2 libraries or headers!
Please set DB2DIR to your DB2 directory, e.g. /usr/IBMdb2/V7.1 (UNIX)
or C:/SQLLIB (Windows)
setup failed
'system C:/Ruby/bin/ruby extconf.rb' failed
try "ruby setup.rb --help" for usage

C:\$user\ruby\ruby-db2-0.4>

Question:

Is there a windows/xp binary that can be downloaded? or any idea about
this new road-block?

Thank you

Victor