Oracle创建只读账号的详细步骤
更新时间：2021年06月05日 16:16:36 作者：Lexsaints
本文介绍了Oracle创建只读账号的详细步骤，有此需求的朋友可以参考下过程
需求说明
现有数据库账号：HEPSUSR：具有完整权限，增删改查。
需要创建一个数据库账号：HTREADER，对HEPSUSR账号下所有的表具有只读权限。
第一步：创建只读账号
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--创建只读账号 第一步
CREATE
USER
htreader identified
by
123456;
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第二步：赋予账号连接数据库等基本权限
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--赋予htreader连接等常规权限
grant
connect
to
htreader;
grant
create
view
to
htreader;
grant
create
session
to
htreader;
grant
create
synonym
to
htreader;
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第三步：获取原账号的查询权限
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获取原账号HEPSUSR用户的所有查询表权限
select
'grant select on '
||owner||
'.'
||object_name||
' to htreader;'
from
dba_objects
where
owner
in
(
'HEPSUSR'
)
and
object_type=
'TABLE'
;
--查询结果为新账号的赋值语句，如下图
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第四步：将原账号权限赋值为新账号
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在原账号HEPSUSR下执行，将原账号的查询权限 赋值给新账号
-------
grant
select
on
HEPSUSR.ENTRY_CERT
to
htreader;
grant
select
on
HEPSUSR.SUB_MESSAGE_INFO
to
htreader;
grant
select
on
HEPSUSR.ENTRY_CERT_RELATION
to
htreader;
grant
select
on
HEPSUSR.ENTRY_CERT_RELATION
to
htreader;
grant
select
on
HEPSUSR.ENTRY_DECL_TAX
to
htreader;
grant
select
on
HEPSUSR.ENTRY_DOCU
to
htreader;
grant
select
on
HEPSUSR.ENTRY_FEES
to
htreader;
grant
select
on
HEPSUSR.ENTRY_GOODS_TAX
to
htreader;
grant
select
on
HEPSUSR.ENTRY_HEAD
to
htreader;
grant
select
on
HEPSUSR.ENTRY_LIST
to
htreader;
grant
select
on
HEPSUSR.ENTRY_WORKFLOW
to
htreader;
grant
select
on
HEPSUSR.IQ_APPEND
to
htreader;
grant
select
on
HEPSUSR.IQ_CERT
to
htreader;
grant
select
on
HEPSUSR.SUB_SWAP
to
htreader;
grant
select
on
HEPSUSR.VIN_LIST
to
htreader;
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第五步：在新账号端创建同位显示表
因为新创建的只读账号，Tables栏中显示为空，我们需要在PL/SQL显示栏中为新账号登录界面添加显示同位元素，如下：
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--在原账号HEPSUSR端执行，获取需要显示的表名称
select
'create or replace SYNONYM htreader.'
||object_name||
' for '
||owner||
'.'
||object_name||
';'
from
dba_objects
where
owner
in
(
'HEPSUSR'
)
and
object_type=
'TABLE'
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第六步：查询结果在新账号端执行
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在只读账号HTREADER端执行：添加显示各个表信息；在SYSNONYM目录下，tables目录下无显示
create
or
replace
SYNONYM htreader.VIN_LIST
for
HEPSUSR.VIN_LIST;
create
or
replace
SYNONYM htreader.SUB_SWAP
for
HEPSUSR.SUB_SWAP;
create
or
replace
SYNONYM htreader.SUB_MESSAGE_INFO
for
HEPSUSR.SUB_MESSAGE_INFO;
create
or
replace
SYNONYM htreader.IQ_CERT
for
HEPSUSR.IQ_CERT;
create
or
replace
SYNONYM htreader.IQ_APPEND
for
HEPSUSR.IQ_APPEND;
create
or
replace
SYNONYM htreader.ENTRY_WORKFLOW
for
HEPSUSR.ENTRY_WORKFLOW;
create
or
replace
SYNONYM htreader.ENTRY_LIST
for
HEPSUSR.ENTRY_LIST;
create
or
replace
SYNONYM htreader.ENTRY_HEAD
for
HEPSUSR.ENTRY_HEAD;
create
or
replace
SYNONYM htreader.ENTRY_GOODS_TAX
for
HEPSUSR.ENTRY_GOODS_TAX;
create
or
replace
SYNONYM htreader.ENTRY_FEES
for
HEPSUSR.ENTRY_FEES;
create
or
replace
SYNONYM htreader.ENTRY_DOCU
for
HEPSUSR.ENTRY_DOCU;
create
or
replace
SYNONYM htreader.ENTRY_DECL_TAX
for
HEPSUSR.ENTRY_DECL_TAX;
create
or
replace
SYNONYM htreader.ENTRY_CONTAINER
for
HEPSUSR.ENTRY_CONTAINER;
create
or
replace
SYNONYM htreader.ENTRY_CERT_RELATION
for
HEPSUSR.ENTRY_CERT_RELATION;
create
or
replace
SYNONYM htreader.ENTRY_CERT
for
HEPSUSR.ENTRY_CERT;
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第七步：执行完成之后 登录新账号，查看结果
新账号可以查询原账号的所有表结构，但是无法执行 增删改相关操作
第八步：执行删除、修改sql语句测试
附录：Oracle查询账号及权限详细语句
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1.查看所有用户：
select
*
from
dba_users;
select
*
from
all_users;
select
*
from
user_users;
2.查看用户或角色系统权限(直接赋值给用户或角色的系统权限)：
select
*
from
dba_sys_privs;
select
*
from
user_sys_privs;
3.查看角色(只能查看登陆用户拥有的角色)所包含的权限
sql>
select
*
from
role_sys_privs;
4.查看用户对象权限：
select
*
from
dba_tab_privs;
select
*
from
all_tab_privs;
select
*
from
user_tab_privs;
5.查看所有角色：
select
*
from
dba_roles;
6.查看用户或角色所拥有的角色：
select
*
from
dba_role_privs;
select
*
from
user_role_privs;
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