GRANT

MySQL

Example

GRANT SELECT, UPDATE ON database_name.table_name TO 'username'@'localhost';

Output

Query OK, 0 rows affected (0.00 sec)

Explanation

The GRANT statement assigns SELECT and UPDATE privileges on the specified table in the stated database to the mentioned user. If the statement is executed successfully, MySQL will return a message indicating that the query has been executed correctly.

PostgreSQL

Example

CREATE ROLE new_user;
GRANT SELECT ON table_name TO new_user;

Output

The output would not provide any visible results, but upon listing privileges for new_user, you can see the SELECT privilege that has been granted.

\du new_user

This would display the following:

                           List of roles
 Role name |  Attributes   | Member of
-----------+---------------+-----------
 new_user  |               | {}

And on more detailed check for the privileges:

\dp table_name

Output can be something like:

    Schema |   Name   | Type  | Access privileges | Column privileges | Policies
-----------+----------+-------+-------------------+-------------------+----------
 public    | table_name | table | new_user=r        |                   |

Explanation

In the given SQL commands, a role new_user is created and then the SELECT privilege is granted on table_name to this user. This allows the new_user to run SELECT queries on table_name. The output section does not display any specific outputs, as the GRANT command does not produce a visible output. However, the privileges for the new_user after the execution of the GRANT command can be verified using the \du and \dp commands.

SQL Server

Example

CREATE LOGIN CreateUser WITH PASSWORD = 'Password123';
CREATE USER CreateUser FOR LOGIN CreateUser;
GRANT SELECT ON YourTable TO CreateUser;

Output

The command(s) completed successfully.

Explanation

In the example above, a new SQL Server login and user, both named ‘CreateUser’, are first created. Afterward, the permission to perform the SELECT operation on ‘YourTable’ is granted to the ‘CreateUser’. This enables ‘CreateUser’ to retrieve data from ‘YourTable’.

Oracle

Example

GRANT SELECT, UPDATE
ON employee
TO user1;

Output

Query OK, 0 rows affected

Explanation

This SQL command grants the permissions ‘SELECT’ and ‘UPDATE’ on the table ‘employee’ to ‘user1’. The output shows that the query executed successfully.

SQLite

Example

GRANT ALL PRIVILEGES ON database_name.table_name TO 'username'@'localhost';

Output

This action does not return an output in SQLite, as it just modifies privileges.

Explanation

The code grants all privileges on a specific table table_name in a specific database database_name to a user username. User username can access the database from the localhost.