SELECT ac.owner,
 ac.constraint_name,
 ac.constraint_type,
 ac.table_name,
 ucc.column_name,
 ac.r_owner,
 ac.r_constraint_name
FROM user_constraints ac
JOIN user_cons_columns ucc
ON ucc.constraint_name = ac.constraint_name
AND ucc.table_name = ac.table_name
WHERE constraint_type = 'R'
AND r_constraint_name IN
 (SELECT constraint_name
 FROM all_constraints
 WHERE constraint_type IN ('P','U')
 AND table_name = upper('table_name')
 );

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