I've a problem similar the following:
Source: Oracle Designer 6i Release Notes
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Bug 911983 Using Oracle Lite and Oracle Designer 6.5 on the same PC
Problem:
If you install Oracle Designer 6.5 onto a PC which has Oracle Lite installed, connecting to Oracle Lite via SQL Plus may fail with the
following error message:
OCA-30002: UBOFSCR FUNCTION NOT SUPPORTED.
Workaround:
Apply patch oca605290. For Oracle customers with MetaLink accounts, this patch is available from either of the following locations:
ftp://oracle-ftp.oracle.com/server/p...ite/oca605290/
http://metalink.oracle.com/metalink/...irm?p_id=16661
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I'm searching around for a patch, but I could not find. The location ftp

racle-ftp.oracle.com/... doesn't exist. And the other patches there not including the bug 911983.
For Metalink I haven't a account.
Who can help me?