How to List All Users With Select Any Table Permission In Oracle?

To list all users with the select any table permission in Oracle, you can query the DBA_SYS_PRIVS table. This table contains information about system privileges granted to users. You can run the following SQL query to retrieve the list of users with the select any table permission:

SELECT grantee FROM dba_sys_privs WHERE privilege = 'SELECT ANY TABLE';

This query will return the list of users who have been granted the SELECT ANY TABLE permission in Oracle. You can then use this information to manage and audit permissions within your database.

How to revoke a role from a user in oracle?

To revoke a role from a user in Oracle, you can use the REVOKE command. Here is the syntax for revoking a role from a user:

1
2

REVOKE role_name
FROM username;

For example, if you want to revoke the role "admin_role" from the user "john", you would use the following command:

1
2

REVOKE admin_role
FROM john;

Make sure you have the necessary privileges to revoke roles from users before executing the REVOKE command.

What is the syntax for revoking permissions from a user in oracle?

The syntax for revoking permissions from a user in Oracle is as follows:

REVOKE {privilege|ALL [PRIVILEGES]} ON table_name FROM user_name;

What is the difference between select any table and select permission in oracle?

In Oracle database, the "SELECT ANY TABLE" privilege allows a user to select data from any table in any schema, regardless of whether they have been granted explicit permission to access that table. This privilege is typically granted to high-level database roles or users who need to have broad access to all tables in the database.

On the other hand, the "SELECT" privilege allows a user to select data from specific tables in a specific schema to which they have been granted access by the table owner or a database administrator. This privilege is more fine-grained and allows for more control over which tables and data a user can access.

In summary, "SELECT ANY TABLE" is a broad permission that grants access to all tables in the database, while the "SELECT" privilege is a more specific permission that grants access to specific tables.

What is the process for creating a new user in oracle database?

To create a new user in an Oracle database, follow these steps:

1. Connect to the Oracle database using a tool like SQL*Plus or SQL Developer with a user that has the necessary privileges to create new users (such as the SYS or SYSTEM user).
2. Run the following SQL command to create a new user:

1

CREATE USER username IDENTIFIED BY password;

Replace "username" with the desired username for the new user and "password" with the desired password.

1. Optionally, grant the new user the necessary privileges by running additional SQL commands. For example, to grant the new user the DBA role, run the following command:

1

GRANT DBA TO username;

1. Optionally, set default tablespace and quota for the new user by running the following command:

1

ALTER USER username DEFAULT TABLESPACE example_tablespace QUOTA 100M ON example_tablespace;

Replace "example_tablespace" with the desired tablespace and quota.

1. Optionally, grant additional privileges to the new user as needed.
2. Once the user has been created and configured, they can connect to the database using the provided username and password.

It is important to note that creating users and granting privileges should be done carefully to ensure the security and integrity of the database.

What is the syntax for granting select any table permission in oracle?

To grant the SELECT ANY TABLE system privilege in Oracle, the syntax is as follows:

1

GRANT SELECT ANY TABLE TO <username>;

Replace <username> with the name of the user to whom you want to grant the SELECT ANY TABLE privilege.