The Repository Creation Utility (RCU) tool is a graphical tool used to create the database metadata repository.
To run RCU, you must possess the DBA privilege and logged in as SYSDBA (for example, as user SYS).
When you run RCU, you are creating databases schemas and tablespaces using CREATE ANY SCHEMA, ALTER ANY SCHEMA, CREATE TABLE, CREATE TABLESPACE, and so on. RCU updates the schema_version_registry by writing entries to the system.schema_version_registry$ system table.
The following privileges are granted to users created by RCU: