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Given an object_id returns the object's schema name. Why anyone thought they needed a stand-alone PL/SQL package for this eludes me
Owned by SYS with no privileges granted
Given an object_id returns the object's schema name
dbms_file_group_exp_internal(obj_id IN NUMBER) RETURN VARCHAR2;
WHERE object_name = 'DBMS_FILE_GROUP_EXP_INTERNAL';