# ALTER TYPE
`ALTER TYPE` changes properties of a type.
Use `ALTER TYPE` to:
- Rename a type.
- Change owner of a type.

## Syntax


**Rename:**

### Rename

To rename a type:



```mzsql
ALTER TYPE <name> RENAME TO <new_name>;

```

| Syntax element | Description |
| --- | --- |
| `<name>` | The current name of the type.  |
| `<new_name>` | The new name of the type.  |
See also [Renaming restrictions](/sql/identifiers/#renaming-restrictions).



**Change owner:**

### Change owner

To change the owner of a type:



```mzsql
ALTER TYPE <name> OWNER TO <new_owner_role>;

```

| Syntax element | Description |
| --- | --- |
| `<name>` | The name of the type you want to change ownership of.  |
| `<new_owner_role>` | The new owner of the type.  |
To change the owner of a type, you must be the current owner and have
membership in the `<new_owner_role>`.






## Privileges

The privileges required to execute this statement are:

- Ownership of the type being altered.
- In addition, to change owners:
  - Role membership in `new_owner`.
  - `CREATE` privileges on the containing schema if the type is namespaced by a
    schema.