The other day I got this annoying oracle error: ORA-12705: Cannot access NLS data files or invalid environment specified. Funny thing I wasn\'t trying to access NLS data fil
Follow this procedure to set the NLS_LANG environment variable for Oracle databases. To set the NLS_LANG environment variable for Oracle databases Determine the NLS_LANG value. In the data warehouse database, run the command SELECT * FROM V$NLS_PARAMETERS
Make a note of the NLS_LANG value, which is in the format [NLS_LANGUAGE]_[NLS_TERRITORY].[NLS_CHARACTERSET]. For example: American_America.UTF8 For Windows: Navigate to Control Panel > System and click the Advanced tab. Click Environment Variables. In System variables section, click New. In the Variable Name field, enter NLS_LANG. In the Variable Value field, enter the NLS_LANG value that was returned in Step 1. The format for the NLS_LANG value should be [NLS_LANGUAGE]_[NLS_TERRITORY].[NLS_CHARACTERSET]. For example: American_America.UTF8. For UNIX, set the variable as shown below: setenv NLS_LANG
For example: setenv NLS_LANG American_America.UTF8. If your data is 7-bit or 8-bit ASCII and the Informatica Server is running on UNIX, then set NLS_LANG _.WE8ISO8859P1 CAUTION: Make sure you set the NLS_LANG variable correctly, as stated in this procedure, or your data will not display correctly.
Reboot the machine after creating the variable.