Restriction of dblink need access to all objects

Hell of all;

I can't stop hr user, this user can access all objects in scott.
* I want to restrict the user hr. I want to settle hr user needs access only emp1 table and any other tables.
How can I do this?

the user is scott
SQL > create mvemp1 view materialized in select * from emp1.

the user is RH

SQL > create link1 link database to connect to scott identified by Tiger using 'orclprod ';
Database link created.
SQL > select DB_LINK, username user_db_links;
DB_LINK USERNAME
LINK1. REGRESS. RDBMS. DEV. US. ORACLE.COM SCOTT
SQL > select count (*) in the scott.emp@link1;
COUNT (*)
14
SQL > select count (*) in the scott.samp@link1;
COUNT (*)
100
SQL > select count (*) in the scott.salgrade@link1;
COUNT (*)
5
thanks in advance...

969352 wrote:
SB... sorry I didn't.

The ONLY way to "restrict" access is not given in the first place!

Some documents about restrictions

If/when you ever issue any GRANT, then access is not & cannot occur.
If/when the user has access & you want to deny access, and then REVOKE the previous GRANT.

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