sys and dba privileged schema over DBMS_REDACT Home > Database Blog > sys and dba privileged schema over DBMS_REDACT The sys and dba privileged schemas can view the details of columns masked using DBMS_REDACT . Sivaram Malayappan sivaram.malayappan@doyensys.com Recent Posts ORA-15064: Communication Failure with ASM Instance ORA-29701: Unable to Connect to Cluster Synchronization Service Building a Multi-Level Approval Workflow in Oracle APEX Interactive Grid