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bb4eefe7bf
DocBook XML is superficially compatible with DocBook SGML but has a slightly stricter DTD that we have been violating in a few cases. Although XSLT doesn't care whether the document is valid, the style sheets don't necessarily process invalid documents correctly, so we need to work toward fixing this. This first commit moves the indexterms in refentry elements to an allowed position. It has no impact on the output.
121 lines
2.7 KiB
Plaintext
121 lines
2.7 KiB
Plaintext
<!--
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doc/src/sgml/ref/drop_schema.sgml
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PostgreSQL documentation
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-->
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<refentry id="SQL-DROPSCHEMA">
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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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<refmeta>
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<refentrytitle>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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<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></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"></member>
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<member><xref linkend="sql-createschema"></member>
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</simplelist>
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</refsect1>
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</refentry>
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