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I am new to using Oracle database.I have been given an oracle database to learn. I need to know that how to find table relationships. I don't have oracle data modeler or don't know any safe third party tool. Is it possible to generate such diagram or table relationship in any kind of representation with SQL/PL SQL queries?

Gauri
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    you can use oracle sql developer data modeler, its free. just use a google – hotfix Mar 18 '19 at 19:30
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    How to generate a diagramm you can read here: https://stackoverflow.com/questions/6580529/how-to-generate-an-entity-relationship-er-diagram-using-oracle-sql-developer – hotfix Mar 18 '19 at 19:43
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    Asking an Oracle novice to navigate a physical data model without providing the necessary tools is sociopathic behaviour. Oracle Data Modeler is free, and supports reverse engineering. You can download it from [the Oracle site here](https://www.oracle.com/database/technologies/appdev/datamodeler.html). – APC Mar 19 '19 at 07:24

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