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[Oracle] ORA-00942 ORA-2063 When Running A Query On View Using a DBLink

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发表于 2024-1-28 12:35:32 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
现象:
When attempting to query a view which selects from a remote table via a database link  the following errors occur:

ORA-00942: table or view does not exist
ORA-02063: preceding line from DB_LINK_1

测试案例:
1. connect USER1
2. CREATE DATABASE LINK "DB_LINK_1" CONNECT TO USER1 IDENTIFIED BY <Password> USING 'DB_LINK_1';
3. CREATE OR REPLACE FORCE VIEW USER2.V1 as select * FROM T1@DB_LINK_1;
4. grant  select on USER2.V1 to USER1;
5. connect USER1
6. select count(*) from USER2.V1 where rownum<4
ORA-00942: table or view does not exist
ORA-02063: preceding line from DB_LINK_1


原因:
The DDL of the view does not specify the owner of the remote table :

CREATE OR REPLACE FORCE VIEW USER2.V1 as select * FROM T1@DB_LINK_1;

Since  there is no owner specified explicitly it uses the database link user.

解决方法:
Specify the owner of the remote table:

sqlplus / as sysdba

CREATE OR REPLACE FORCE VIEW USER2.V1 as select * FROM USER1.T1@DB_LINK_1;

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