Entironment
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Windows 7 Ultimate x64
Oracle 11g Release 2 (11.2) for Microsoft Windows x64 (64-Bit)
Toad for Oracle Version 11.6
Oracle EBS R12.1.x installed to Red Hat Linux AS 4U7 on VMware Workstation
SYMPTOMS
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Toad depend on [Variable: KEY_OraDb11g_home1] connection the EBS R12.1.x show Error message:
ORA-12705: Cannot access NLS data files or invalid environment specified
SOLUTION
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1. Create a new regedit file “ORACLE_NLS_LANG.reg”
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESOFTWAREORACLEKEY_OraDb11g_home1]
"NLS_LANG"="SIMPLIFIED CHINESE_CHINA.ZHS16GBK"
2. Double Clicking the file “ORACLE_NLS_LANG.reg” to regedit.