rem  You must be logged in as system to do the grant
create table system.dbc_changes
   (DBC_USER_NAME                            VARCHAR2(10),
    DBC_CHG_DATE                             DATE,
    DBC_FIELD_NAME                           VARCHAR2(30),
    DBC_FIELD_SEQ                            NUMBER(3),
    DBC_CHG_INS_DEL                          CHAR(1),
    DBC_RECORD_ID                            CHAR(12),
    DBC_BEFORE                               VARCHAR2(50),
    DBC_AFTER                                VARCHAR2(50),
    DBC_KEY                                  NUMBER(8))
   storage (initial 1M next 1M maxextents 99 pctincrease 0)
   tablespace DEVELOPMENT;
create table system.dbc_columns
   (DBC_FIELD_NAME                           VARCHAR2(30),
    DBC_REPORT_SET                           VARCHAR2(30))
   storage (initial 8K next 8K maxextents 20 pctincrease 0)
   tablespace DEVELOPMENT;
grant all on system.dbc_changes to public;
grant all on system.dbc_columns to public;