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The DROP USER statement removes one or more SQL users.
Note:
New in v20.1: Since the keywords ROLE and USER can now be used interchangeably in SQL statements for enhanced Postgres compatibility, DROP USER is now an alias for DROP ROLE.
Required privileges
New in v20.1: To drop other non-admin users, the user must have the CREATEROLE parameter set.
Synopsis
Parameters
| Parameter | Description |
|---|---|
user_name |
The username of the user to remove. To remove multiple users, use a comma-separate list of usernames. You can use SHOW USERS to find usernames. |
Example
All of a user's privileges must be revoked before the user can be dropped.
In this example, first check a user's privileges. Then, revoke the user's privileges before removing the user.
> SHOW GRANTS ON test.customers FOR mroach;
+-----------+--------+------------+
| Table | User | Privileges |
+-----------+--------+------------+
| customers | mroach | CREATE |
| customers | mroach | INSERT |
| customers | mroach | UPDATE |
+-----------+--------+------------+
(3 rows)
> REVOKE CREATE,INSERT,UPDATE ON test.customers FROM mroach;
> DROP USER mroach;
See also
CREATE USERALTER USERSHOW USERSGRANTSHOW GRANTS- Create Security Certificates
- Other SQL Statements
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