Perl install_driver（Oracle）失败：-无法为模块DBD :: Oracle Win64加载'../DBD/Oracle/Oracle.dll'

Question

Having issues with Perl 5.20.2 and Oracle::DBD, getting following error when trying to connect to Ora 12C DB, run out of ideas on how to identify what is wrong here.

install_driver(Oracle) failed: Can't load 'C:/Perl/site/lib/auto/DBD/Oracle/Oracle.dll' for module DBD::Oracle: load_file:%1 is not a valid Win32 application at C:/Perl/lib/DynaLoader.pm line 194.
  at (eval 72) line 3.
 Compilation failed in require at (eval 72) line 3

My environment is as follows

• Perl -v - This is perl 5, version 20, subversion 2 (v5.20.2) built for MSWin32-x86-multi-thread-64int
• OS is Win 2008 R2 SP1
• Ora client is 12.1.0 (64 bit)

Windows Environmental variables

ORACLE_HOME=C:\\Oracle12c\\product\\12.1.0\\client_1

Path=C:\\Oracle12c\\product\\12.1.0\\client_1\\bin;C:\\Perl\\site\\bin;C:\\Perl\\bin;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPo werShell\\v1.0\\;c:\\dmake;D:\\NTRESKIT

TNS_ADMIN=C:\\Oracle12c\\product\\12.1.0\\client_1\\bin

Answer 1

Figured it out...issue was not a files permission issue, the clue was in the " ...not a valid Win32 application " verbiage.

I was using Ora 64 bit client instead of 32-bit, removed the Oracle 12c 64-bit client and installed Oracle 12c 32-bit client (you can also install the 11g driver (apparently an Oracle client supports one version back and one version forward)).

I required the full 12c Ora client installer as I need access to the database tools like sqlloader, note that there is a bug in the 12c Oracle 32-bit installer, had to modify the install/oraparam.ini and replace MSVCREDIST_LOC=vcredist_x64.exe with MSVCREDIST_LOC=vcredist_x86.exe, took me a while to find the installer, link here, http://www.oracle.com/technetwork/database/enterpriseedition/downloads/database12c-win64-download-2297732.html , 32-bit driver at bottom of url, hopefully they will fix the installer)

Also, very important to also add an ORACLE_HOME Win env path, I also added the Oracle client to the Path and ensured that it was before the Perl entries in my Windows Path.

Answer 2

Along with the comment I made above, please look at the following here on stackoverflow:

Perl_and_Oracle_DBD