The grant should go to USER
, not to SCHEMA2:
GRANT SELECT, UPDATE, DELETE, INSERT ON schema1.toto TO userxy;
This should solve the problem. If it doesn't, can you please post the result of
SELECT * FROM all_objects WHERE object_name='TOTO';
質問
here's a tricky case on which 5 peoples including a DBA have been struggling on for days... I offer lifetime consideration to the one which will identify the root cause of the issue.
here it is:
Oracle Client: 10g Oracle Server: 11g
We have 2 schemas and 1 user:
SCHEMA1
SCHEMA2
USER
We have 1 table 'TOTO'
which is defined in SCHEMA1
(SCHEMA1.TOTO
)
We have a private synonym of table 'TOTO'
, called 'TOTO'
defined in SCHEMA2
, created like this:
CREATE SYNONYM SCHEMA2.TOTO FOR SCHEMA1.TABLE1;
We have granted SELECT,UPDATE,DELETE,INSERT priviledges on "SCHEMA2.TOTO " (so on the synonym) to SCHEMA2 (so that any session ran from SCHEMA2 has access to the synonym table)
GRANT SELECT, UPDATE, DELETE, INSERT ON SCHEMA2.TOTO TO SCHEMA2;
Our application connects to the DB with USER
, then directly switches to SCHEMA2
:
ALTER SESSION SET CURRENT_SCHEMA=SCHEMA2;
Then after that, it tries to perform a select query on the synonym table WITHOUT prefixing the synonym name by SCHEMA1 (this is a constrain of the framework we use):
SELECT COL FROM TOTO;
Most of the times this query works successfully, which is what we expect since we have altered our session to SCHEMA2
, by default that where the objects are looked.
But sometimes it fails, with an ORA-00942: table or view does not exist
error.
I insist on the fact that between the time when it works and when it fails, nothing has changed, we've just restarted the application (which is of course re-connecting to the DB the same way at each startup). We've been investigated with a DBA monitoring all the events on USER,SCHEMA1,SCHEMA2 hoping to find an external process modifying the GRANTS on one of thoses, between a success and a failure, but nothing changes. Yet, at some point, randomnly we get the ORA-00942 error, then we restart the application several times and it's back again...
Would someone have an idea or any suggestion/hint that could lead us to identify what we're missing here?
Many thanks for your help!
解決
The grant should go to USER
, not to SCHEMA2:
GRANT SELECT, UPDATE, DELETE, INSERT ON schema1.toto TO userxy;
This should solve the problem. If it doesn't, can you please post the result of
SELECT * FROM all_objects WHERE object_name='TOTO';