ActiveRecord/Oracle without Rails

dfg59 · February 7, 2007, 3:06pm

All -

I’m attempting to write a data validation program using ActiveRecord and
connecting to an Oracle 10g database. I’ve downloaded the ruby-oci8
package, double clicked it to install, and written a simple program
(shown below). However, when I run the program, I get a pop up with the
following error: This application has failed to start because OCI.dll
was not found. Re-installing the application may fix this problem. Also,
this is the error shown on the console after the application exits:

c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_record/connection_
adapters/oracle_adapter.rb:685:in `oci_connection’: Oracle/OCI libraries
could n
ot be loaded: 126: The specified module could not be found. -
c:/ruby/lib/ruby
/site_ruby/1.8/i386-msvcrt/oci8lib.so (LoadError)

Any ideas? I’m confused because when I doubled clicked the ruby-oci8
package, I know it placed oci8lib.so in
c:/ruby/lib/ruby/site_ruby/1.8/i386-msvcrt/oci8lib.so. I’m on a windows
box.

Thanks,
Drew

require ‘rubygems’
require ‘active_record’

ActiveRecord::Base::establish_connection(
:adapter=>“oci”,
:host=>“",
:database=>"”,
:user=>“",
:password=>"”)

class Employee < ActiveRecord::Base
set_table_name “EMPLOYEE”
end

Employee.find(:all).each do |emp|
puts emp
end

dfg59 · February 7, 2007, 3:19pm

On 2/7/07, Drew O. [email protected] wrote:

c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_record/connection_
adapters/oracle_adapter.rb:685:in `oci_connection’: Oracle/OCI libraries
could n
ot be loaded: 126: The specified module could not be found. -
c:/ruby/lib/ruby
/site_ruby/1.8/i386-msvcrt/oci8lib.so (LoadError)

Any ideas? I’m confused because when I doubled clicked the ruby-oci8
package, I know it placed oci8lib.so in
c:/ruby/lib/ruby/site_ruby/1.8/i386-msvcrt/oci8lib.so. I’m on a windows
box.

Look for OCI.dll - it’s a dependency for oci8lib.so. It should be 1.
in the oci8lib’s dir, 2. somewhere on the $PATH. There are maybe more
options, for details see

dfg59 · February 7, 2007, 3:23pm

Look for OCI.dll - it’s a dependency for oci8lib.so. It should be 1.
in the oci8lib’s dir, 2. somewhere on the $PATH. There are maybe more
options, for details see

I was able to find OCI.dll by downloading the Oracle Instant Client. I
copied it to ruby/bin and now the previously mentioned error is gone.
Thanks for that. However, I’m seeing something new now. Any ideas?

c:/ruby/lib/ruby/site_ruby/1.8/oci8.rb:51:in init': OCI Library Initialization Error (OCIError) from c:/ruby/lib/ruby/site_ruby/1.8/oci8.rb:51 from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inge
m_original_require’
from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in re quire' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.1/lib/active_suppo rt/dependencies.rb:495:inrequire’
from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.1/lib/active_suppo
rt/dependencies.rb:342:in new_constants_in' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.1/lib/active_suppo rt/dependencies.rb:495:inrequire’
from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.1/lib/active_suppo
rt/core_ext/kernel/requires.rb:7:in require_library_or_gem' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.1/lib/active_suppo rt/core_ext/kernel/reporting.rb:11:insilence_warnings’
… 9 levels…
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d.rb:80
from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in ge m_original_require' from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:inre
quire’
from models.rb:2

dfg59 · February 7, 2007, 4:55pm

Hi,

On 2/7/07, Drew O. [email protected] wrote:

Look for OCI.dll - it’s a dependency for oci8lib.so. It should be 1.
in the oci8lib’s dir, 2. somewhere on the $PATH. There are maybe more
options, for details see

I was able to find OCI.dll by downloading the Oracle Instant Client. I
copied it to ruby/bin and now the previously mentioned error is gone.
Thanks for that. However, I’m seeing something new now. Any ideas?

OCI.dll only? You need at least two files. OCI.dll and oraociei10.dll
(Basic)
or oraociicus10.dll (BasicLite).

dfg59 · February 7, 2007, 5:09pm

Takehiro Kubo wrote:

Hi,

On 2/7/07, Drew O. [email protected] wrote:

Look for OCI.dll - it’s a dependency for oci8lib.so. It should be 1.
in the oci8lib’s dir, 2. somewhere on the $PATH. There are maybe more
options, for details see

I was able to find OCI.dll by downloading the Oracle Instant Client. I
copied it to ruby/bin and now the previously mentioned error is gone.
Thanks for that. However, I’m seeing something new now. Any ideas?

OCI.dll only? You need at least two files. OCI.dll and oraociei10.dll
(Basic)
or oraociicus10.dll (BasicLite).

Takehiro-

Thanks for your help! That seemed to solve the problem I was initially
having. I am getting another error now, but I’m assuming this has to do
with connecting to the database. The error is below. Does this mean I
have connected incorrectly? I read that I should not be using :database
within establish_connection. My method currently looks like so:

ActiveRecord::Base::establish_connection(
:adapter=>“oci”,
:host=>“hostaddress/schema”,
:user=>“user”,
:password=>“pass”)

Error:

c:/ruby/lib/ruby/site_ruby/1.8/oci8.rb:184:in logon': ORA-12514: TNS:listener d oes not currently know of service requested in connect descriptor (OCIError) from c:/ruby/lib/ruby/site_ruby/1.8/oci8.rb:184:in initialize’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/connection_adapters/oracle_adapter.rb:584:in new' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/connection_adapters/oracle_adapter.rb:584:in new_connection’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/connection_adapters/oracle_adapter.rb:620:in initialize' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/connection_adapters/oracle_adapter.rb:35:in new’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/connection_adapters/oracle_adapter.rb:35:in oracle_connection' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/connection_adapters/oracle_adapter.rb:41:in oci_connection’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/connection_adapters/abstract/connection_specification.rb:262:in send' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/connection_adapters/abstract/connection_specification.rb:262:in connection_wi
thout_query_cache=’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/query_cache.rb:54:in connection=' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/connection_adapters/abstract/connection_specification.rb:230:in retrieve_conn
ection’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/connection_adapters/abstract/connection_specification.rb:78:in
connection' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/base.rb:1140:in add_limit!’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/base.rb:1102:in construct_finder_sql' from c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor d/base.rb:997:in find_every’
from
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.2/lib/active_recor
d/base.rb:418:in `find’
from models.rb:14

dfg59 · February 7, 2007, 7:11pm

Takehiro Kubo wrote:

The hostaddress’s TNS listener doesn’t know the service name.

Takehiro -

I’ve got it working! Thanks for all your help, you’ve make it quite
easy.

-Drew

dfg59 · February 7, 2007, 5:50pm

Hi,

On 2/8/07, Drew O. [email protected] wrote:

ActiveRecord::Base::establish_connection(
:adapter=>“oci”,
:host=>“hostaddress/schema”,

It is not ‘schema’ but ‘service_name’.
If your target database is Oracle Express Edition, it is ‘XE’.

:host=>“hostaddress/XE”,

c:/ruby/lib/ruby/site_ruby/1.8/oci8.rb:184:in `logon’: ORA-12514:
TNS:listener d
oes not currently know of service requested in connect descriptor

The hostaddress’s TNS listener doesn’t know the service name.

dfg59 · March 15, 2007, 10:16pm

On Feb 7, 2:11 pm, Drew O. [email protected] wrote:

–
Posted viahttp://www.ruby-forum.com/.

Is a “service_name” the same as a SID??
Thanks!

dfg59 · August 13, 2008, 7:33pm

Hi Drew O. ,

could you please help me out that where can i download the below dll’s ?

oraociei10.dll
(Basic)
or oraociicus10.dll (BasicLite).

regards,
Senthil K.

dfg59 · August 26, 2008, 5:11am

Pls install Oracle Instant Client
http://www.oracle.com/technology/tech/oci/instantclient/index.html

2008/8/14 Senthil K. [email protected]