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
目录
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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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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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';
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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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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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