Utilizando o OWNER das tabelas, consulte:
SELECT UC.OWNER, UC.CONSTRAINT_NAME, UC.TABLE_NAME, UCC.COLUMN_NAME, UC.R_OWNER, UC.R_CONSTRAINT_NAME, UCCR.COLUMN_NAME, UC.DELETE_RULE
FROM USER_CONSTRAINTS UC
INNER JOIN USER_CONS_COLUMNS UCC ON UCC.OWNER = UC.OWNER AND UCC.CONSTRAINT_NAME = UC.CONSTRAINT_NAME AND UCC.TABLE_NAME = UC.TABLE_NAME
INNER JOIN USER_CONS_COLUMNS UCCR ON UCCR.OWNER = UC.R_OWNER AND UCCR.CONSTRAINT_NAME = UC.R_CONSTRAINT_NAME
WHERE UC.CONSTRAINT_TYPE = 'R';
Pode ser utilizado as view:
ALL_CONSTRAINTS
ALL_CONS_COLUMNS
Filtre pelo OWNER desejado