---
title: "DROP DOMAIN"
id: sql-dropdomain
pg_version: "20devel"
---

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# DROP DOMAIN — remove a domain

## Synopsis

```
DROP DOMAIN [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
```

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## Description

`DROP DOMAIN` removes a domain. Only the owner of a domain can remove it. 

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## Parameters

**`IF EXISTS`**

 Do not throw an error if the domain does not exist. A notice is issued in this case. **`name`**

 The name (optionally schema-qualified) of an existing domain. **`CASCADE`**

 Automatically drop objects that depend on the domain (such as table columns), and in turn all objects that depend on those objects (see [Section 5.17](ddl-depend.md)). **`RESTRICT`**

 Refuse to drop the domain if any objects depend on it. This is the default. <a id="sql-dropdomain-examples"></a>

## Examples

To remove the domain `box`: 
DROP DOMAIN box;


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## Compatibility

This command conforms to the SQL standard, except for the `IF EXISTS` option, which is a PostgreSQL extension. 

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## See Also

[CREATE DOMAIN](sql-createdomain.md), [ALTER DOMAIN](sql-alterdomain.md)