关于创建视图的问题(48天)

今天开发碰到一个问题，说创建视图的时候老是提示没有权限。

SQL> create view test_view as select *from customer;
create view test_view as select *from customer
                                     *
ERROR at line 1:
ORA-01031: insufficient privileges

第一反应是这个schema没有create view的权限。

查询发现有。

SQL> select *from session_privs;
PRIVILEGE
----------------------------------------
CREATE SESSION
ALTER SESSION
UNLIMITED TABLESPACE
CREATE TABLE
CREATE SYNONYM
CREATE VIEW
CREATE SEQUENCE
CREATE DATABASE LINK
CREATE ROLE
CREATE PROCEDURE
CREATE TRIGGER
PRIVILEGE
----------------------------------------
CREATE MATERIALIZED VIEW
CREATE ANY DIRECTORY
DROP ANY DIRECTORY
CREATE TYPE
SELECT ANY DICTIONARY
16 rows selected.

而且表的访问也是没有问题的，权限通过role来grant,而且建立了synonym。

SQL> select *from user_role_privs;
USERNAME                       GRANTED_ROLE                   ADM DEF OS_
------------------------------ ------------------------------ --- --- ---
TRUDB1                         TRUDBO1_ALL                    NO  YES NO
SQL> select count(*)from customer;
 COUNT(*)
----------
        0

最后发现如果创建视图，通过role来授予权限，是有这种情况的，得赋予object privilege

用table owner登录。

SQL> grant select on customer to trudb1;
Grant succeeded.

然后用目标用户登录，创建视图

SQL> create view test_view as select *from customer;
View created.
SQL> drop view test_view;
View dropped.
SQL> select count(*)from customer;
 COUNT(*)
----------
        0