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Resolving the PLSQL-00453 error

I have links set up and can successfully query and write PL/SQL code between two instances. So for example, I can retrieve rows from an Oracle 9i (rel 1) database table and insert them into an Oracle 8i table. However, I run into PLSQL-00453 when I try to write a similar procedure from an 8i to a 9i (rel 2) database. Any idea what might be the issue here?

I'm glad that you got your database links working! It looks like you are running into error PLS-00453. You get this error when you are trying to access a remote table which contains "objects", or user-defined datatypes. This type of operation is not allowed. That is why the error is being raised. You will have to reference tables that do not use user-defined datatypes. Your problem really doesn't have anything to do with the database versions.

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