Oracle creates users, roles, grants, and tables.

Oracle is a relational database management system that enables the creation of users, roles, grants, and tables through the following steps:

1. Create a user:
   Log in to the database with sysdba privileges.
2. Log in to SQL*Plus as the system administrator using the following command: “sqlplus / as sysdba.”
3. “Create user:”
4. Make a new user with the given username and password.
5. Authorized users:
6. Give permission to username to connect, use resources, and create sessions.
7. Exit the database.
8. Leave;
9. Create a character: Sign in to the database using the same username and password as when creating the user.
10. Login to SQLPlus with the specified username and password.
11. Create a character:
12. Assign a role named “rolename”.
13. Grant role permissions.
14. Authorize the role to have permission.
15. Exit the database.
16. Leave;
17. Authorized users:
    Login to the database with sysdba privileges.
18. Please login to the SQL*Plus tool as the sysdba user.
19. Authorized user
20. Assign the role to the specified username.
21. Exit the database.
22. Leave;
23. Create a table:
    Log in to the database using the username and password created when the user was created.
24. Login to sqlplus using your username and password.
25. Create a table:
26. To make a new table called “tablename” with columns, just specify the column names, data type, and any constraints.
27. Exit database
28. leave;

The above steps can be adjusted and modified according to specific needs, such as specific settings for authorization and permissions.