NZE-28797: invalid key data type
What triggered the Error:
The type specified for a key is not supported.What should we do to fix it:
Correct the key type. Consult your Oracle documentation to determine which key types are supported.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board