可以在Oracle数据库中创建只读数据库用户吗? 怎么样?
答案 0 :(得分:45)
Oracle数据库中的用户只拥有您授予的权限。因此,您只需不授予任何其他权限即可创建只读用户。
创建用户时
CREATE USER ro_user
IDENTIFIED BY ro_user
DEFAULT TABLESPACE users
TEMPORARY TABLESPACE temp;
用户甚至没有登录数据库的权限。你可以批准
GRANT CREATE SESSION to ro_user
然后您可以继续授予您想要的任何读取权限。例如,如果您希望RO_USER
能够查询SCHEMA_NAME.TABLE_NAME
,您可以执行类似
GRANT SELECT ON schema_name.table_name TO ro_user
通常,您最好创建一个角色,然后授予该角色的对象权限,以便您可以将该角色授予不同的用户。像
这样的东西创建角色
CREATE ROLE ro_role;
在特定架构中的每个表上授予角色SELECT访问权限
BEGIN
FOR x IN (SELECT * FROM dba_tables WHERE owner='SCHEMA_NAME')
LOOP
EXECUTE IMMEDIATE 'GRANT SELECT ON schema_name.' || x.table_name ||
' TO ro_role';
END LOOP;
END;
然后将角色授予用户
GRANT ro_role TO ro_user;
答案 1 :(得分:13)
create user ro_role identified by ro_role;
grant create session, select any table, select any dictionary to ro_role;
答案 2 :(得分:1)
执行以下过程,例如用户系统。
将p_owner设置为架构所有者,将p_readonly设置为只读用户的名称。
create or replace
procedure createReadOnlyUser(p_owner in varchar2, p_readonly in varchar2)
AUTHID CURRENT_USER is
BEGIN
execute immediate 'create user '||p_readonly||' identified by '||p_readonly;
execute immediate 'grant create session to '||p_readonly;
execute immediate 'grant select any dictionary to '||p_readonly;
execute immediate 'grant create synonym to '||p_readonly;
FOR R IN (SELECT owner, object_name from all_objects where object_type in('TABLE', 'VIEW') and owner=p_owner) LOOP
execute immediate 'grant select on '||p_owner||'.'||R.object_name||' to '||p_readonly;
END LOOP;
FOR R IN (SELECT owner, object_name from all_objects where object_type in('FUNCTION', 'PROCEDURE') and owner=p_owner) LOOP
execute immediate 'grant execute on '||p_owner||'.'||R.object_name||' to '||p_readonly;
END LOOP;
FOR R IN (SELECT owner, object_name FROM all_objects WHERE object_type in('TABLE', 'VIEW') and owner=p_owner) LOOP
EXECUTE IMMEDIATE 'create synonym '||p_readonly||'.'||R.object_name||' for '||R.owner||'."'||R.object_name||'"';
END LOOP;
FOR R IN (SELECT owner, object_name from all_objects where object_type in('FUNCTION', 'PROCEDURE') and owner=p_owner) LOOP
execute immediate 'create synonym '||p_readonly||'.'||R.object_name||' for '||R.owner||'."'||R.object_name||'"';
END LOOP;
END;
答案 3 :(得分:0)
您可以创建用户和授予权限
创建read_only标识的用户read_only; grant create session,选择任何表read_only;
答案 4 :(得分:-1)
默认数据库不是严格可行的,因为每个用户通过公共自动获得许多公共执行。