Fix ORA-02273: this unique/primary key is referenced by some foreign keys

问题

Trying to drop a unique constraint I've got such error:

ORA-02273: this unique/primary key is referenced by some foreign keys

How to find the list of foreign keys by which my unique constraint is referenced?

回答1:

select * from all_constraints 
where constraint_type='R' and r_constraint_name='YOUR_CONSTRAINT';

来源：https://stackoverflow.com/questions/1740959/fix-ora-02273-this-unique-primary-key-is-referenced-by-some-foreign-keys