You can search by object codes - usually you use the DBMS_METADATA package to generate DDL for the object, and then to search for the CLOB. However, this is not like what you want to do.
, - , DBA_DEPENDENCIES ( ALL_DEPENDENCIES USER_DEPENDENCIES , ). -
SELECT *
FROM dba_dependencies
WHERE referenced_owner = 'SCOTT'
AND referenced_name = 'EMP'
AND referenced_type = 'TABLE'
, EMP SCOTT.
, , DBA_DEPENDENCIES, , , SQL, . .