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   1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>SELECT INTO</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-select.html" title="SELECT" /><link rel="next" href="sql-set.html" title="SET" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">SELECT INTO</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-select.html" title="SELECT">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 18.0 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-set.html" title="SET">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-SELECTINTO"><div class="titlepage"></div><a id="id-1.9.3.173.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">SELECT INTO</span></h2><p>SELECT INTO — define a new table from the results of a query</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
   3 [ WITH [ RECURSIVE ] <em class="replaceable"><code>with_query</code></em> [, ...] ]
   4 SELECT [ ALL | DISTINCT [ ON ( <em class="replaceable"><code>expression</code></em> [, ...] ) ] ]
   5     [ { * | <em class="replaceable"><code>expression</code></em> [ [ AS ] <em class="replaceable"><code>output_name</code></em> ] } [, ...] ]
   6     INTO [ TEMPORARY | TEMP | UNLOGGED ] [ TABLE ] <em class="replaceable"><code>new_table</code></em>
   7     [ FROM <em class="replaceable"><code>from_item</code></em> [, ...] ]
   8     [ WHERE <em class="replaceable"><code>condition</code></em> ]
   9     [ GROUP BY <em class="replaceable"><code>expression</code></em> [, ...] ]
  10     [ HAVING <em class="replaceable"><code>condition</code></em> ]
  11     [ WINDOW <em class="replaceable"><code>window_name</code></em> AS ( <em class="replaceable"><code>window_definition</code></em> ) [, ...] ]
  12     [ { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] <em class="replaceable"><code>select</code></em> ]
  13     [ ORDER BY <em class="replaceable"><code>expression</code></em> [ ASC | DESC | USING <em class="replaceable"><code>operator</code></em> ] [ NULLS { FIRST | LAST } ] [, ...] ]
  14     [ LIMIT { <em class="replaceable"><code>count</code></em> | ALL } ]
  15     [ OFFSET <em class="replaceable"><code>start</code></em> [ ROW | ROWS ] ]
  16     [ FETCH { FIRST | NEXT } [ <em class="replaceable"><code>count</code></em> ] { ROW | ROWS } ONLY ]
  17     [ FOR { UPDATE | SHARE } [ OF <em class="replaceable"><code>table_name</code></em> [, ...] ] [ NOWAIT ] [...] ]
  18 </pre></div><div class="refsect1" id="id-1.9.3.173.5"><h2>Description</h2><p>
  19    <code class="command">SELECT INTO</code> creates a new table and fills it
  20    with data computed by a query.  The data is not returned to the
  21    client, as it is with a normal <code class="command">SELECT</code>.  The new
  22    table's columns have the names and data types associated with the
  23    output columns of the <code class="command">SELECT</code>.
  24   </p></div><div class="refsect1" id="id-1.9.3.173.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">TEMPORARY</code> or <code class="literal">TEMP</code></span></dt><dd><p>
  25      If specified, the table is created as a temporary table.  Refer
  26      to <a class="xref" href="sql-createtable.html" title="CREATE TABLE"><span class="refentrytitle">CREATE TABLE</span></a> for details.
  27     </p></dd><dt><span class="term"><code class="literal">UNLOGGED</code></span></dt><dd><p>
  28      If specified, the table is created as an unlogged table.  Refer
  29      to <a class="xref" href="sql-createtable.html" title="CREATE TABLE"><span class="refentrytitle">CREATE TABLE</span></a> for details.
  30     </p></dd><dt><span class="term"><em class="replaceable"><code>new_table</code></em></span></dt><dd><p>
  31       The name (optionally schema-qualified) of the table to be created.
  32      </p></dd></dl></div><p>
  33    All other parameters are described in detail under <a class="xref" href="sql-select.html" title="SELECT"><span class="refentrytitle">SELECT</span></a>.
  34   </p></div><div class="refsect1" id="id-1.9.3.173.7"><h2>Notes</h2><p>
  35    <a class="link" href="sql-createtableas.html" title="CREATE TABLE AS"><code class="command">CREATE TABLE AS</code></a> is functionally similar to
  36    <code class="command">SELECT INTO</code>.  <code class="command">CREATE TABLE AS</code>
  37    is the recommended syntax, since this form of <code class="command">SELECT
  38    INTO</code> is not available in <span class="application">ECPG</span>
  39    or <span class="application">PL/pgSQL</span>, because they interpret the
  40    <code class="literal">INTO</code> clause differently. Furthermore,
  41    <code class="command">CREATE TABLE AS</code> offers a superset of the
  42    functionality provided by <code class="command">SELECT INTO</code>.
  43   </p><p>
  44    In contrast to <code class="command">CREATE TABLE AS</code>, <code class="command">SELECT
  45    INTO</code> does not allow specifying properties like a table's access
  46    method with <a class="xref" href="sql-createtable.html#SQL-CREATETABLE-METHOD"><code class="literal">USING <em class="replaceable"><code>method</code></em></code></a> or the table's
  47    tablespace with <a class="xref" href="sql-createtable.html#SQL-CREATETABLE-TABLESPACE"><code class="literal">TABLESPACE <em class="replaceable"><code>tablespace_name</code></em></code></a>. Use
  48    <code class="command">CREATE TABLE AS</code> if necessary.  Therefore, the default table
  49    access method is chosen for the new table. See <a class="xref" href="runtime-config-client.html#GUC-DEFAULT-TABLE-ACCESS-METHOD">default_table_access_method</a> for more information.
  50   </p></div><div class="refsect1" id="id-1.9.3.173.8"><h2>Examples</h2><p>
  51    Create a new table <code class="literal">films_recent</code> consisting of only
  52    recent entries from the table <code class="literal">films</code>:
  53
  54 </p><pre class="programlisting">
  55 SELECT * INTO films_recent FROM films WHERE date_prod &gt;= '2002-01-01';
  56 </pre></div><div class="refsect1" id="id-1.9.3.173.9"><h2>Compatibility</h2><p>
  57    The SQL standard uses <code class="command">SELECT INTO</code> to
  58    represent selecting values into scalar variables of a host program,
  59    rather than creating a new table.  This indeed is the usage found
  60    in <span class="application">ECPG</span> (see <a class="xref" href="ecpg.html" title="Chapter 34. ECPG — Embedded SQL in C">Chapter 34</a>) and
  61    <span class="application">PL/pgSQL</span> (see <a class="xref" href="plpgsql.html" title="Chapter 41. PL/pgSQL — SQL Procedural Language">Chapter 41</a>).
  62    The <span class="productname">PostgreSQL</span> usage of <code class="command">SELECT
  63    INTO</code> to represent table creation is historical.  Some other SQL
  64    implementations also use <code class="command">SELECT INTO</code> in this way (but
  65    most SQL implementations support <code class="command">CREATE TABLE AS</code>
  66    instead).  Apart from such compatibility considerations, it is best to use
  67    <code class="command">CREATE TABLE AS</code> for this purpose in new code.
  68   </p></div><div class="refsect1" id="id-1.9.3.173.10"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createtableas.html" title="CREATE TABLE AS"><span class="refentrytitle">CREATE TABLE AS</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-select.html" title="SELECT">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-set.html" title="SET">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SELECT </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 18.0 Documentation">Home</a></td><td width="40%" align="right" valign="top"> SET</td></tr></table></div></body></html>