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122 lines
2.8 KiB
Plaintext
122 lines
2.8 KiB
Plaintext
<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/drop_schema.sgml,v 1.9 2008/11/14 10:22:46 petere Exp $
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PostgreSQL documentation
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-->
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<refentry id="SQL-DROPSCHEMA">
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<refmeta>
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<refentrytitle id="SQL-DROPSCHEMA-TITLE">DROP SCHEMA</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>DROP SCHEMA</refname>
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<refpurpose>remove a schema</refpurpose>
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</refnamediv>
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<indexterm zone="sql-dropschema">
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<primary>DROP SCHEMA</primary>
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</indexterm>
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<refsynopsisdiv>
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<synopsis>
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DROP SCHEMA [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> [, ...] [ CASCADE | RESTRICT ]
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>DROP SCHEMA</command> removes schemas from the database.
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</para>
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<para>
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A schema can only be dropped by its owner or a superuser. Note that
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the owner can drop the schema (and thereby all contained objects)
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even if he does not own some of the objects within the schema.
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><literal>IF EXISTS</literal></term>
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<listitem>
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<para>
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Do not throw an error if the schema does not exist. A notice is issued
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in this case.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">name</replaceable></term>
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<listitem>
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<para>
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The name of a schema.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>CASCADE</literal></term>
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<listitem>
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<para>
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Automatically drop objects (tables, functions, etc.) that are
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contained in the schema.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>RESTRICT</literal></term>
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<listitem>
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<para>
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Refuse to drop the schema if it contains any objects. This is
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the default.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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To remove schema <literal>mystuff</literal> from the database,
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along with everything it contains:
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<programlisting>
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DROP SCHEMA mystuff CASCADE;
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</programlisting>
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</para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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<command>DROP SCHEMA</command> is fully conforming with the SQL
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standard, except that the standard only allows one schema to be
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dropped per command, and apart from the
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<literal>IF EXISTS</> option, which is a <productname>PostgreSQL</>
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extension.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-alterschema" endterm="sql-alterschema-title"></member>
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<member><xref linkend="sql-createschema" endterm="sql-createschema-title"></member>
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</simplelist>
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</refsect1>
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</refentry>
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