Oracle Grant total schema access to user

I have a user (user A) in oracle who has a lot of objects under their schema, I wish to give access to these tables to another user (user B).

I want to avoid the following if possible
1. creating public synomyns for all the objects under user A.
2. having to grant User B access to User A's on a object level (for example 1000000 tables and 1 million grants.

Is there a way to do this ? I have seen something to do with proxy users but I am not sure I have understood it correctly.
richard_gleedAsked:
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oleggoldCommented:
You could write a simple loop :
begin

for i in
(select distinct table_name from all_tables where owner='USER_A')
loop
execute immediate 'grant all on '||i.table_name||' to USER_B';
end loop;
end;
/
0

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richard_gleedAuthor Commented:
yes I'm aware of that but I am looking for a cleaner way of doing this if possible, I don't want to be having to run this script to grant access multiple times a day to ensure user B has access to all of user A's schema
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Jinesh KamdarCommented:
Oracle allows granting either system privileges or object privileges. For object privileges, you can specify only an object, not a schema. So ultimately u vil have to issue a grant stmt. to each table in schema A. You can use something like this to make things easier : -

GRANT ALL PRIVILEGES ON table_1 TO user_b;

At best, if you want to avoid PL/SQL, you can write a SELECT (below) to generate all the GRANT statements for u, dump its results in a SQL-script and run it on SQLPLUS prompt.

SELECT 'GRANT ALL PRIVILEGES ON ' || table_name || ' TO USER_B'
FROM user_tables;
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sdstuberCommented:
If you have multiple user's that you'll have to keep maintaining, then try granting to a role and then grant that role to each user.

That way the user's don't have to be modified just the role.

To keep them in sych automatically you can create ddl triggers to automatically grant anytime that schema creates a new table.

Or a dbms job to find ungranted objects and grant them.


I'm curious as to why you have such dynamic table creation.  
Seems odd that you wouldn't be able to keep up.

Hopefully it's not because an application is creating and destroying tables to store "temporary" information.



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stalreja335Commented:
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