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Enforcing foreign key constraints across schemas

In Oracle (8i), is it possible to enforce foreign key constraints across schemas (within the same database instance)?

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Yes, it is possible to have the database enforce a Foreign Key constraint across schemas in the same database instance. To do this, you will need to grant the REFERENCES object privilege to the other schema which will have a foreign key to your schema's table. Something like the following should do the trick:

GRANT references ON my_table TO your_user;


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This was first published in April 2003

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