ER diagram for Oracle 8i database

Hi all,
I'm working as DBA in a banking environment and have got a request to provide the ER diagram of a database(Oracle 8i).
The DBAs who have created this database in Year 2000 are not here currently and there is no documentation on the db design. There are around 3000 tables in this database and i'm not sure whether foreign key constraints are there on the tables.
Can someone pls advise whether there is any tool or there is some other way to generate ER diagram for this database?
Thanks and awaiting your suggestions...
Regards,
Poonam

user11977557 wrote:
Hi all,
I'm working as DBA in a banking environment and have got a request to provide the ER diagram of a database(Oracle 8i).
The DBAs who have created this database in Year 2000 are not here currently and there is no documentation on the db design. There are around 3000 tables in this database and i'm not sure whether foreign key constraints are there on the tables.
Can someone pls advise whether there is any tool or there is some other way to generate ER diagram for this database?
Thanks and awaiting your suggestions...
Regards,
PoonamJust beware that automated tools can only pick up on the defined FK relationships. Unfortunately, a lot of apps don't rely on FK, believing they can enforce everything in the app code -- which of course the db will have no knowledge of but from a business standpoint is still a relationship.

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