1.Workflow Builder 2.6.3.5 Installation, Setups, Errors

1. Download the Workflow Builder from the below link.

http://www.oracle.com/technetwork/database/options/winclient-101059.html

2. Install the same and follow the screens.

3.  For wf nls error:

Set NLS_LANG as an operating system environment variable:

1. Select Start - Control Panel - System
2. Select Environment
3. Set NLS_LANG parameter to AMERICAN_AMERICA.UTF8.


Or try this

1. define NLS_LANG Environment Variable on your PC, following below navigation :
For Windows
Start / Settings / Control Panel / System / Advanced / Environment Variables
Define new "System Variable" NLS_LANG and assign it the value AMERICAN_AMERICA.WE8MSWIN1252
Save

2. Bounce the PC

3. Try again database connection from Workflow Builder