ClickHouse/docs/en/sql-reference/statements/set-role.md
2022-08-28 10:53:34 -04:00

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---
slug: /en/sql-reference/statements/set-role
sidebar_position: 51
sidebar_label: SET ROLE
---
# SET ROLE Statement
Activates roles for the current user.
``` sql
SET ROLE {DEFAULT | NONE | role [,...] | ALL | ALL EXCEPT role [,...]}
```
## SET DEFAULT ROLE
Sets default roles to a user.
Default roles are automatically activated at user login. You can set as default only the previously granted roles. If the role isnt granted to a user, ClickHouse throws an exception.
``` sql
SET DEFAULT ROLE {NONE | role [,...] | ALL | ALL EXCEPT role [,...]} TO {user|CURRENT_USER} [,...]
```
## Examples
Set multiple default roles to a user:
``` sql
SET DEFAULT ROLE role1, role2, ... TO user
```
Set all the granted roles as default to a user:
``` sql
SET DEFAULT ROLE ALL TO user
```
Purge default roles from a user:
``` sql
SET DEFAULT ROLE NONE TO user
```
Set all the granted roles as default excepting some of them:
``` sql
SET DEFAULT ROLE ALL EXCEPT role1, role2 TO user
```