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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >ALTER VIEW</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="ALTER USER MAPPING" HREF="sql-alterusermapping.html"><LINK REL="NEXT" TITLE="ANALYZE" HREF="sql-analyze.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="ALTER USER MAPPING" HREF="sql-alterusermapping.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="ANALYZE" HREF="sql-analyze.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-ALTERVIEW" ></A >ALTER VIEW</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN66157" ></A ><H2 >Name</H2 >ALTER VIEW -- change the definition of a view</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN66162" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > ALTER [ COLUMN ] <TT CLASS="REPLACEABLE" ><I >column_name</I ></TT > SET DEFAULT <TT CLASS="REPLACEABLE" ><I >expression</I ></TT > ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > ALTER [ COLUMN ] <TT CLASS="REPLACEABLE" ><I >column_name</I ></TT > DROP DEFAULT ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > OWNER TO <TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT > ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > RENAME TO <TT CLASS="REPLACEABLE" ><I >new_name</I ></TT > ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > SET SCHEMA <TT CLASS="REPLACEABLE" ><I >new_schema</I ></TT > ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > SET ( <TT CLASS="REPLACEABLE" ><I >view_option_name</I ></TT > [= <TT CLASS="REPLACEABLE" ><I >view_option_value</I ></TT >] [, ... ] ) ALTER VIEW [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > RESET ( <TT CLASS="REPLACEABLE" ><I >view_option_name</I ></TT > [, ... ] )</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN66180" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >ALTER VIEW</TT > changes various auxiliary properties of a view. (If you want to modify the view's defining query, use <TT CLASS="COMMAND" >CREATE OR REPLACE VIEW</TT >.) </P ><P > You must own the view to use <TT CLASS="COMMAND" >ALTER VIEW</TT >. To change a view's schema, you must also have <TT CLASS="LITERAL" >CREATE</TT > privilege on the new schema. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must have <TT CLASS="LITERAL" >CREATE</TT > privilege on the view's schema. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the view. However, a superuser can alter ownership of any view anyway.) </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN66189" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="REPLACEABLE" ><I >name</I ></TT ></DT ><DD ><P > The name (optionally schema-qualified) of an existing view. </P ></DD ><DT ><TT CLASS="LITERAL" >IF EXISTS</TT ></DT ><DD ><P > Do not throw an error if the view does not exist. A notice is issued in this case. </P ></DD ><DT ><TT CLASS="LITERAL" >SET</TT >/<TT CLASS="LITERAL" >DROP DEFAULT</TT ></DT ><DD ><P > These forms set or remove the default value for a column. A default value associated with a view column is inserted into <TT CLASS="COMMAND" >INSERT</TT > statements on the view before the view's <TT CLASS="LITERAL" >ON INSERT</TT > rule is applied, if the <TT CLASS="COMMAND" >INSERT</TT > does not specify a value for the column. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT ></DT ><DD ><P > The user name of the new owner of the view. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_name</I ></TT ></DT ><DD ><P > The new name for the view. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_schema</I ></TT ></DT ><DD ><P > The new schema for the view. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >view_option_name</I ></TT ></DT ><DD ><P > The name of a view option to be set or reset. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >view_option_value</I ></TT ></DT ><DD ><P > The new value for a view option. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN66236" ></A ><H2 >Notes</H2 ><P > For historical reasons, <TT CLASS="COMMAND" >ALTER TABLE</TT > can be used with views too; but the only variants of <TT CLASS="COMMAND" >ALTER TABLE</TT > that are allowed with views are equivalent to the ones shown above. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN66241" ></A ><H2 >Examples</H2 ><P > To rename the view <TT CLASS="LITERAL" >foo</TT > to <TT CLASS="LITERAL" >bar</TT >: </P><PRE CLASS="PROGRAMLISTING" >ALTER VIEW foo RENAME TO bar;</PRE ><P></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN66247" ></A ><H2 >Compatibility</H2 ><P > <TT CLASS="COMMAND" >ALTER VIEW</TT > is a <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > extension of the SQL standard. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN66252" ></A ><H2 >See Also</H2 ><A HREF="sql-createview.html" >CREATE VIEW</A >, <A HREF="sql-dropview.html" >DROP VIEW</A ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sql-alterusermapping.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sql-analyze.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ALTER USER MAPPING</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >ANALYZE</TD ></TR ></TABLE ></DIV ></BODY ></HTML >