It looks like you are attempting to grant permissions one schema to another schema. Such a thing does not exist in Oracle, but there are workarounds.
The easiest way to make this happen is to grant the CREATE ANY TABLE privilege to B, but there are obvious security concerns with doing so.
You need to grant the REFERENCES
privilege on the reference table to user2
.
(See GRANT, Table Privileges section. Note that this cannot be granted to a role, must be granted to the user directly.)
Here's a demo:
SQL> create user user1 identified by user1;
User created.
SQL> grant create session, create table, unlimited tablespace to user1;
Grant succeeded.
SQL> create user user2 identified by user2;
User created.
SQL> grant create session, create table, unlimited tablespace to user2;
Grant succeeded.
SQL> create table user1.ref_table (id number primary key);
Table created.
SQL> insert into user1.ref_table values (1);
1 row created.
SQL> insert into user1.ref_table values (2);
1 row created.
SQL> commit;
Commit complete.
SQL> grant references on user1.ref_table to user2;
Grant succeeded.
SQL> connect user2/user2;
Connected.
SQL> create table oth_table (thing number, fk number);
Table created.
SQL> alter table oth_table add(constraint fk1 foreign key (fk)
2 references user1.ref_table on delete set null);
Table altered.
SQL> insert into oth_table values (42, 1);
1 row created.
SQL> insert into oth_table values (256, 2);
1 row created.
SQL> commit;
Commit complete.
SQL> connect user1/user1;
Connected.
SQL> delete from ref_table where id = 1;
1 row deleted.
SQL> commit;
Commit complete.
SQL> connect user2/user2;
Connected.
SQL> select * from oth_table;
THING FK
---------- ----------
42
256 2
If you want admin
to do all the work, it'll need the CREATE ANY INDEX
privilege, and you still need the REFERENCES
grant to user2
.
Here's how that could work:
SQL> create user user1 identified by user1;
User created.
SQL> create user user2 identified by user2;
User created.
SQL> create user admin identified by admin;
User created.
--- Grants
----------------
SQL> grant create session, create table, unlimited tablespace to user1;
Grant succeeded.
SQL> grant create session, create table, unlimited tablespace to user2;
Grant succeeded.
SQL> grant create session, create any table,
2 create any index, alter any table to admin;
Grant succeeded.
--- Create reference table as admin
----------------
SQL> connect admin/admin
Connected.
SQL> create table user1.ref_table (id number primary key);
Table created.
--- Do the "references" grant
----------------
SQL> connect / as sysdba
Connected.
SQL> grant references on user1.ref_table to user2;
Grant succeeded.
--- Create the second table as admin
----------------
SQL> connect admin/admin
Connected.
SQL> create table user2.oth_table (foo number, bar number);
Table created.
--- Add the constraint
----------------
SQL> alter table user2.oth_table add(constraint fk
2 foreign key (bar) references user1.ref_table(id)
3 on delete set null);
Table altered.
Best Answer
If a system privilege is granted with ADMIN OPTION to a user, this user can grant this system privileges to other users, e.g. after
Scott is able to grant CREATE TABLE to other users. He is also able to grant CREATE TABLE to other users WITH GRANT OPTION. WITH GRANT OPTION works for roles too.
An object privileges (like a select on a table) must be granted WITH GRANT OPTION to a user to grant it to another user.
This can be found in the SQL Language Reference