How to see what privileges are granted to schema of another user

Question

Consider the case : In a database , I have two users A and B and their corresponding schema.

I want to know , How can I get the information : what permissions are there for USER A in Schema B .

Consider the case : We have two users and their associated scehmas. We have user A and user B. In A, say we have TB1 TB2, in B,say we have TBa, TBb. Now I want to know how can I find what privileges User A has on Schema B.

For example : User A is writing : select * from B.TBb This means USER A is accessing User B's table so , it shows he has SELECT Privilege. I want to know what all privileges User A has on Schema B.

Which query shall be executed to get the list of privileges that User A has on Schema B.

Answer 1

You can use these queries:

select * from all_tab_privs; select * from dba_sys_privs; select * from dba_role_privs; 

Each of these tables have a grantee column, you can filter on that in the where criteria:

where grantee = 'A' 

To query privileges on objects (e.g. tables) in other schema I propose first of all all_tab_privs, it also has a table_schema column.

If you are logged in with the same user whose privileges you want to query, you can use user_tab_privs, user_sys_privs, user_role_privs. They can be queried by a normal non-dba user.