Comments on: Ruby/Python and DB2 Drivers

By: Using the IBM_DB Ruby gem with DB2 – DataGeek.blog

Using the IBM_DB Ruby gem with DB2 – DataGeek.blog — Fri, 18 May 2018 15:44:05 +0000

[…] install ~db2inst2/sqllib/ruby64/ibm_db-2.5.11.gem as root. Don’t make my mistake – use the proper instructions on installing the gem. That also happens to be by one of my favorite authors on technical blogging […]

By: Using the IBM_DB Ruby gem with DB2 - IBM DB2 - IBM DB2 - Toad World

Using the IBM_DB Ruby gem with DB2 - IBM DB2 - IBM DB2 - Toad World — Tue, 05 Jan 2016 18:05:47 +0000

By: vinod

vinod — Sun, 22 Feb 2009 19:04:57 +0000

I am trying to use db2 9.5 express-c with ruby on rails on ubuntu. I have installed db2 and db2 is running fine. I have created sample database, etc. I installed the ruby driver also as per the instructions in this web site. However I am getting following error:

1. inside irb, when I do require ‘ibm_db’
I get this error: loaderror no such file to load — ibm_db

2. for the rail application, when I do rake db:migrate
I get this error: security processing failed with reason ’42’ (ROOT CAPABILITY REQUIRED).

Thanks.

Vinod

By: sampei

sampei — Sat, 31 Jan 2009 19:39:11 +0000

Hi,
I would like to install this driver on an Ubuntu 8.10 64bit without GUI and with ruby1.9.

I have some issues:

1) Because it is a text only system, I installed the DB2 with db2install and not with db2setup. The DB2 server itself works fine, but I don’t know if I installed the “Base application development tools”, too. If not, where can I find they in the text only db2 installer?

2) I installed ruby1.9 and rubygems1.9. But if I do

“sudo apt-get install ruby-full rubygems”

it wants to install ruby1.8. Can the idm_db driver work with ruby1.9?

I tried to install the ibm_db gem but I had this error:
Error installing ibm_db:
Failed to build gem native extension.
extconf failure: Unable to locate DB2 libraries.

Even if I did

export IBM_DB_DIR=/opt/ibm/db2/V9.5

and

export IBM_DB_LIB=/opt/ibm/db2/V9.5/lib64

Thank You

By: Jürgen

Jürgen — Wed, 03 Dec 2008 18:30:53 +0000

Hi,

I ran into a couple of issues when following your nice manual on opensuse 11 x86_64, behind a company firewall:

a) gem didn’t use the http_proxy system variable. finally I found this workaround:
sudo vi /usr/lib64/ruby/vendor_ruby/1.8/rubygems/config_file.rb

between
def [](key)
@hash[key.to_s]
end

and
private

insert:
def []=(key, value)
@hash[key.to_s]=value
end

then, as in your manual:
. /home/db2inst1/sqllib/db2profile
export IBM_DB_DIR=/home/db2inst1/sqllib
export IBM_DB_LIB=/home/db2inst1/sqllib/lib

-> sudo gem update -p “http://our.company.proxy:8081”
now works!
found at: http://elia.wordpress.com/2007/07/18/gems-through-the-proxy-or-the-undefined-method-error/

b)
sudo ln -s /opt/ibm/db2/V9.5/lib64 /opt/ibm/db2/V9.5/lib
now also this works:
sudo gem install ibm_db –include-dependencies -p “http://our.company.proxy:8081”

of course a) is not related to ibm_db but to gem – but anyway, it might help somebody else.
I can connect now to the local sample database.

regards,
Jürgen
cheers

By: Greg

Greg — Mon, 29 Sep 2008 04:40:54 +0000

Hello Antonio,

Thanks for your quick reply. I just signed up for rubyforge too. I’m quite familiar with UDB but new to rails development.

My env is set via .bashrc of the instance owner:
set |grep -i IBM
DB2DIR=/opt/ibm/db2/V9.5
IBM_DB_DIR=/opt/ibm/db2/V9.5
IBM_DB_LIB=/opt/ibm/db2/V9.5/lib32

Not sure if many are using IBM_DB with Fedora, but there seem to be many mysql developer on Fedora. I’ll continue through the forum as you’ve suggested.

Thanks,
Greg

By: Antonio Cangiano

Antonio Cangiano — Sun, 28 Sep 2008 21:51:22 +0000

Greg, did you run the following before attempting sudo gem install ibm_db?

export IBM_DB_DIR=/opt/ibm/db2/V9.5
export IBM_DB_LIB=/opt/ibm/db2/V9.1/lib32

Also, please copy and paste your question on the Rubyforge forum: http://rubyforge.org/forum/forum.php?forum_id=9503. Installing on Fedora shouldn’t be a problem.

By: Greg

Greg — Sun, 28 Sep 2008 21:34:59 +0000

Can I expect Fedora 9 to work with the IBM_DB gem? I’m very disappointed to see IBM supporting Red Hat but not Fedora because I thought there was a point of Express-C being free. I have Express-C DB2 9.5 installed (after I downloaded libaio-0.3.106-4.2.i386.rpm).

As root I ran:
yum install ruby
yum install rubygems
gem install rails –include-dependencies

With my environment setup, as database instance owner I ran: gem install ibm_db

It failed and I had to copy .gem files from:
/usr/lib/ruby/gems/1.8/cache to
/usr/lib/ruby/gems/1.8/gems/cache

Then I reran it’s failing with the following:
===========================
[db2iss@lc01 sqllib]$ gem install ibm_db
Building native extensions. This could take a while…
ERROR: Error installing ibm_db:
ERROR: Failed to build gem native extension.

/usr/bin/ruby extconf.rb install ibm_db
checking for SQLConnect() in -ldb2… no
checking for SQLConnect() in -ldb2… yes
creating Makefile

make
gcc -I. -I. -I/usr/lib/ruby/1.8/i386-linux -I. -I/opt/ibm/db2/V9.5/include -D_FILE_OFFSET_BITS=64 -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector –param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -Wall -fPIC -c ibm_db.c
In file included from ibm_db.c:20:
ruby_ibm_db.h:18:21: error: sqlcli1.h: No such file or directory
In file included from ibm_db.c:20:
ruby_ibm_db.h:165: error: ‘SQL_MAX_MESSAGE_LENGTH’ undeclared here (not in a function)
==============================

Question: Am I wasting my time trying to get IBM_DB gem working on Fedora 9? Or is this current error worth troubleshooting?

By: pdepmcp

pdepmcp — Wed, 27 Aug 2008 17:43:08 +0000

you write: select “Base application development tools” under the section “Application Development Tools”.
Maybe I am wrong (and believe me I do really hope I am), but I am not able to remove all required components and that means:
1) I have to install 417 MB of useless stuff (come on, what’s the use of java support on a simple dumb client computer?!?)
2) I got a base server installation on a client/devel workstation.
3) I have some difficulties with crap client machines.

but let’s say I do all this on a single dedicated workstation. Can I move the compiled module to other machines without all other db2 stuff? Or have I to figure out which file are to be moved from the db2 install folder together with the python module? Or do I need to install all this on every client??

I am a bit concerned.

By: Mario Briggs

Mario Briggs — Tue, 12 Aug 2008 13:23:28 +0000

Charaf,
Yes the SQL_DECFLOAT error when on versions of DB2 < 9 has been fixed. Please pull the latest egg