During installation of Oracle 9i database - DBCA - Creating a database step - you will get an error like below.Error will be shown in "Creating data dictionary Views" section when the process is around 17% complete.
ORA-29807: Specified oprator does not exist
This is actually a bug in the software.It is a known Oracle 9i problem regarding data dictionary views.
It has been determined that this error is being raised while DBCA is running the script prvtxml.plb.
Prvtxml.plb is a script which creates a particular package body. This script is called from the catxml.sql script - which in turn is called by the catproc.sql script - run automatically when creating a database using DBCA.
Anyway You can safely ignore the error and continue with the creation of the database.
Workaround:
1. Click Ignore and go ahead with DBCA (after invoking DBCA).
The database creation using DBCA should now proceed without additional errors.OR
2. Go to the script catxml.sql and comment out the line which will run prvtxml.plb ( before invoking DBCA).