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| $PostgreSQL: pgsql/doc/src/sgml/ref/drop_schema.sgml,v 1.8 2006/09/16 00:30:18 momjian Exp $ |
| PostgreSQL documentation |
| --> |
| |
| <refentry id="SQL-DROPSCHEMA"> |
| <refmeta> |
| <refentrytitle id="SQL-DROPSCHEMA-TITLE">DROP SCHEMA</refentrytitle> |
| <refmiscinfo>SQL - Language Statements</refmiscinfo> |
| </refmeta> |
| |
| <refnamediv> |
| <refname>DROP SCHEMA</refname> |
| <refpurpose>remove a schema</refpurpose> |
| </refnamediv> |
| |
| <indexterm zone="sql-dropschema"> |
| <primary>DROP SCHEMA</primary> |
| </indexterm> |
| |
| <refsynopsisdiv> |
| <synopsis> |
| DROP SCHEMA [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> [, ...] [ CASCADE | RESTRICT ] |
| </synopsis> |
| </refsynopsisdiv> |
| |
| <refsect1> |
| <title>Description</title> |
| |
| <para> |
| <command>DROP SCHEMA</command> removes schemas from the database. |
| </para> |
| |
| <para> |
| A schema can only be dropped by its owner or a superuser. Note that |
| the owner can drop the schema (and thereby all contained objects) |
| even if he does not own some of the objects within the schema. |
| </para> |
| </refsect1> |
| |
| <refsect1> |
| <title>Parameters</title> |
| |
| <variablelist> |
| <varlistentry> |
| <term><literal>IF EXISTS</literal></term> |
| <listitem> |
| <para> |
| Do not throw an error if the schema does not exist. A notice is issued |
| in this case. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><replaceable class="PARAMETER">name</replaceable></term> |
| <listitem> |
| <para> |
| The name of a schema. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><literal>CASCADE</literal></term> |
| <listitem> |
| <para> |
| Automatically drop objects (tables, functions, etc.) that are |
| contained in the schema. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><literal>RESTRICT</literal></term> |
| <listitem> |
| <para> |
| Refuse to drop the schema if it contains any objects. This is |
| the default. |
| </para> |
| </listitem> |
| </varlistentry> |
| </variablelist> |
| </refsect1> |
| |
| <refsect1> |
| <title>Examples</title> |
| |
| <para> |
| To remove schema <literal>mystuff</literal> from the database, |
| along with everything it contains: |
| |
| <programlisting> |
| DROP SCHEMA mystuff CASCADE; |
| </programlisting> |
| </para> |
| </refsect1> |
| |
| <refsect1> |
| <title>Compatibility</title> |
| |
| <para> |
| <command>DROP SCHEMA</command> is fully conforming with the SQL |
| standard, except that the standard only allows one schema to be |
| dropped per command, and apart from the |
| <literal>IF EXISTS</> option, which is a <productname>PostgreSQL</> |
| extension. |
| </para> |
| </refsect1> |
| |
| <refsect1> |
| <title>See Also</title> |
| |
| <simplelist type="inline"> |
| <member><xref linkend="sql-alterschema" endterm="sql-alterschema-title"></member> |
| <member><xref linkend="sql-createschema" endterm="sql-createschema-title"></member> |
| </simplelist> |
| </refsect1> |
| |
| </refentry> |