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<REFENTRY ID="SQL-DROPVIEW">
<REFMETA>
<REFENTRYTITLE>
DROP VIEW
</REFENTRYTITLE>
<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
</REFMETA>
<REFNAMEDIV>
<REFNAME>
DROP VIEW
</REFNAME>
<REFPURPOSE>
Removes an existing view from a database
</REFPURPOSE>
</refnamediv>
<REFSYNOPSISDIV>
<REFSYNOPSISDIVINFO>
<DATE>1998-09-22</DATE>
</REFSYNOPSISDIVINFO>
<SYNOPSIS>
DROP VIEW <REPLACEABLE CLASS="PARAMETER">view</REPLACEABLE>
</SYNOPSIS>
<REFSECT2 ID="R2-SQL-DROPVIEW-1">
<REFSECT2INFO>
<DATE>1998-09-22</DATE>
</REFSECT2INFO>
<TITLE>
Inputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<REPLACEABLE CLASS="PARAMETER">view</REPLACEABLE>
</TERM>
<LISTITEM>
<PARA>
The name of an existing view.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</REFSECT2>
<REFSECT2 ID="R2-SQL-DROPVIEW-2">
<REFSECT2INFO>
<DATE>1998-09-22</DATE>
</REFSECT2INFO>
<TITLE>
Outputs
</TITLE>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>DROP</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The message returned if the command is successful.
</para>
</listitem>
</varlistentry>
<VARLISTENTRY>
<TERM>
<ReturnValue>
ERROR: RewriteGetRuleEventRel: rule "_RET<REPLACEABLE CLASS="PARAMETER">view</REPLACEABLE>" not found</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
This message occurs if the specified view does not exist in
the database.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</REFSECT2>
</REFSYNOPSISDIV>
<REFSECT1 ID="R1-SQL-DROPVIEW-1">
<REFSECT1INFO>
<DATE>1998-09-22</DATE>
</REFSECT1INFO>
<TITLE>
Description
</TITLE>
<PARA>
<command>DROP VIEW</command> drops an existing view from the database.
To execute this command you must be the owner of the
view.
</PARA>
<REFSECT2 ID="R2-SQL-DROPVIEW-3">
<REFSECT2INFO>
<DATE>1998-09-22</DATE>
</REFSECT2INFO>
<TITLE>
Notes
</TITLE>
<PARA>
The <productname>Postgres</productname>
<command>DROP TABLE</command> statement also drops views.
</PARA>
<PARA>
Refer to <command>CREATE VIEW</command>
for information on how to create views.
</PARA>
</REFSECT2>
</refsect1>
<REFSECT1 ID="R1-SQL-DROPVIEW-2">
<TITLE>
Usage
</TITLE>
<PARA>
This command will remove the view called <literal>kinds</literal>:
</PARA>
<ProgramListing>
DROP VIEW kinds;
</ProgramListing>
</REFSECT1>
<REFSECT1 ID="R1-SQL-DROPVIEW-3">
<TITLE>
Compatibility
</TITLE>
<PARA>
</PARA>
<REFSECT2 ID="R2-SQL-DROPVIEW-4">
<REFSECT2INFO>
<DATE>1998-09-22</DATE>
</REFSECT2INFO>
<TITLE>
SQL92
</TITLE>
<PARA>
<acronym>SQL92</acronym> specifies some additional capabilities for
<command>DROP VIEW</command>:
</PARA>
<synopsis>
DROP VIEW <replaceable class="parameter">view</replaceable> { RESTRICT | CASCADE }
</synopsis>
<REFSECT3 ID="R3-SQL-DROPVIEW-1">
<REFSECT3INFO>
<DATE>1998-09-22</DATE>
</REFSECT3INFO>
<TITLE>
Inputs
</TITLE>
<PARA>
<variablelist>
<varlistentry>
<term>RESTRICT</term>
<listitem>
<para>
Ensures that only a view with no dependent views or
integrity constraints can be destroyed.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CASCADE</term>
<listitem>
<para>
Any referencing views and integrity constraints
will be dropped as well.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect3>
<REFSECT3 ID="R3-SQL-DROPVIEW-2">
<REFSECT3INFO>
<DATE>1998-09-22</DATE>
</REFSECT3INFO>
<TITLE>
Notes
</TITLE>
<para>
<tip>
<para>
At present, to remove a referenced view from a
<productname>Postgres</productname> database,
you must drop it explicitly.
</para>
</tip>
</para>
</refsect3>
</refsect2>
</refsect1>
</REFENTRY>
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