在Oracle数据库创建脚本中如何初始化某些表

Sample
表空间：IMPTEMP
表：Roles 、Users
通过PL/SQL导出的数据库脚本
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-- Export file for user IMPTEMP                    --
-- Created by Administrator on 2010-1-29, 14:14:25 --
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spool sample.log
prompt
prompt Creating table ROLES
prompt ====================
prompt
create table IMPTEMP.ROLES
(
  ROLENAME NVARCHAR2(50) not null,
  ROLEXML  NCLOB
)
tablespace IMPTEMP
  pctfree 10
  initrans 1
  maxtrans 255
  storage
  (
    initial 64K
    minextents 1
    maxextents unlimited
  );
alter table IMPTEMP.ROLES
  add constraint ROLES_PRIMARY_KEY primary key (ROLENAME)
  using index
  tablespace IMPTEMP
  pctfree 10
  initrans 2
  maxtrans 255
  storage
  (
    initial 64K
    minextents 1
    maxextents unlimited
  );
prompt
prompt Creating table USERS
prompt ====================
prompt
create table IMPTEMP.USERS
(
  USERID   NVARCHAR2(50) not null,
  USERNAME NVARCHAR2(50),
  ROLENAME NVARCHAR2(50),
  PASSWORD NVARCHAR2(50),
  USERXML  NCLOB,
  USERDN   NVARCHAR2(100),
  ISLOCAL  NUMBER(1)
)
tablespace IMPTEMP
  pctfree 10
  initrans 1
  maxtrans 255
  storage
  (
    initial 64K
    minextents 1
    maxextents unlimited
  );
comment on column IMPTEMP.USERS.ISLOCAL
  is '0-ISNOTLOCAL  :  1-ISLOCAL';
alter table IMPTEMP.USERS
  add constraint USERS_PRIMARY_KEY primary key (USERID)
  using index
  tablespace IMPTEMP
  pctfree 10
  initrans 2