sql - Oracle Create View issue

Question

I am logged in as the dba account and I want to create a view in User1's schema, but selecting data from User2's.

I used the following query:

CREATE OR REPLACE VIEW User1.NewView (Column1) AS
SELECT DISTINCT Column1 FROM User2.Table

and I get the following error:

SQL Error: ORA-00942: table or view does not exist
00942. 00000 -  "table or view does not exist"
*Cause:    
*Action:

To resolve this I had to grant select access to User1 on User2.Table. Is there a way to do this without having to grant access, since I am already logged in as the dba?

Answer 1

是的，您必须（并且始终应该）明确授予对另一个模式中对象的访问权限。

GRANT SELECT ON user2.table TO user1

尽管您以“dba 帐户”（我假设是 SYS）身份登录，但 CREATE 语句专门针对 user1 模式。

Answer 2

你可以做 CREATE OR REPLACE FORCE VIEW ...

尽管没有权限，这将创建视图，但除非授予权限，否则该视图将不可用。如果稍后将授予权限（例如在某些自动构建脚本中），这是一个有用的解决方案。

Answer 3

可能是因为您无权访问表或视图

查询授予用户对象的权限；