ClickHouse/docs/en/sql-reference/statements/set-role.md

---
slug: /en/sql-reference/statements/set-role
sidebar_position: 51
sidebar_label: SET ROLE
title: "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 isn’t 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 except for specific roles `role1` and `role2`:

``` sql
SET DEFAULT ROLE ALL EXCEPT role1, role2 TO user
```