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Is there a way to test a DB Link without logging as the owner of the DB Link ?

DB version: 19c
OS : Oracle Linux/RHEL 8.x
Is there a way to test a DB Links without loggin as the owner of the DB ?
In the below Pluggable DB, HRTB_MASTER
schema has a database link named DBL_WBC.DOMAIN.NET
I logged in as SYS. Even as SYS, I cannot run a query using HRTB_MASTER.DBL_WBC.DOMAIN.NET
SQL> alter session set container = SALES_PROD; Session altered. SQL> show user USER is "SYS" SQL> SQL> SQL> alter session set current_schema = HRTB_MASTER; Session altered. SQL> select sysdate from [email protected]_WBC.DOMAIN.NET; select sysdate from [email protected]_WBC.DOMAIN.NET * ERROR at line 1: ORA-02019: connection description for remote database not found SQL> select sysdate from [email protected]_WBC.DOMAIN.NET; select sysdate from [email protected]_WBC.DOMAIN.NET * ERROR at line 1: ORA-02019: connection description for remote database not found
In 19c, DBA_DB_LINKS view has a VALID column (Not there in 12.1)
But, DBA_DB_LINKS.VALID column value is not reliable. Today, for a DB link which was actually broken, DBA_DB_LINKS.VALID wrongly displayed YES.
So, I am wondering if there is any other way to test if a DB Link is working without actually logging in as the owner of the DB Link. There are occasions where DBAs and application guys have lost passwords of application schemas. In such a scenario, I, as a DBA should be able to check if a DB Link is working or not
Best Answer
-
SYS> create view HRTB_MASTER.test_dblink as select * from [email protected]_WBC.DOMAIN.NET; SYS> select * from HRTB_MASTER.test_dblink; SYS> rem drop view HRTB_MASTER.test_dblink;
Answers
-
SYS> create view HRTB_MASTER.test_dblink as select * from [email protected]_WBC.DOMAIN.NET; SYS> select * from HRTB_MASTER.test_dblink; SYS> rem drop view HRTB_MASTER.test_dblink;