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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
| commit | 5e45211a64149b3c659b90ff2de6fa982a5a93ed (patch) | |
| tree | 739caf8c461053357daa9f162bef34516c7bf452 /doc/src/sgml/html/sql-selectinto.html | |
| parent | Initial commit. (diff) | |
| download | postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.tar.xz postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.zip | |
Adding upstream version 15.5.upstream/15.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/src/sgml/html/sql-selectinto.html')
| -rw-r--r-- | doc/src/sgml/html/sql-selectinto.html | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/doc/src/sgml/html/sql-selectinto.html b/doc/src/sgml/html/sql-selectinto.html new file mode 100644 index 0000000..b926f2c --- /dev/null +++ b/doc/src/sgml/html/sql-selectinto.html @@ -0,0 +1,68 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!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 15.5 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"> +[ WITH [ RECURSIVE ] <em class="replaceable"><code>with_query</code></em> [, ...] ] +SELECT [ ALL | DISTINCT [ ON ( <em class="replaceable"><code>expression</code></em> [, ...] ) ] ] + * | <em class="replaceable"><code>expression</code></em> [ [ AS ] <em class="replaceable"><code>output_name</code></em> ] [, ...] + INTO [ TEMPORARY | TEMP | UNLOGGED ] [ TABLE ] <em class="replaceable"><code>new_table</code></em> + [ FROM <em class="replaceable"><code>from_item</code></em> [, ...] ] + [ WHERE <em class="replaceable"><code>condition</code></em> ] + [ GROUP BY <em class="replaceable"><code>expression</code></em> [, ...] ] + [ HAVING <em class="replaceable"><code>condition</code></em> ] + [ WINDOW <em class="replaceable"><code>window_name</code></em> AS ( <em class="replaceable"><code>window_definition</code></em> ) [, ...] ] + [ { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] <em class="replaceable"><code>select</code></em> ] + [ ORDER BY <em class="replaceable"><code>expression</code></em> [ ASC | DESC | USING <em class="replaceable"><code>operator</code></em> ] [ NULLS { FIRST | LAST } ] [, ...] ] + [ LIMIT { <em class="replaceable"><code>count</code></em> | ALL } ] + [ OFFSET <em class="replaceable"><code>start</code></em> [ ROW | ROWS ] ] + [ FETCH { FIRST | NEXT } [ <em class="replaceable"><code>count</code></em> ] { ROW | ROWS } ONLY ] + [ FOR { UPDATE | SHARE } [ OF <em class="replaceable"><code>table_name</code></em> [, ...] ] [ NOWAIT ] [...] ] +</pre></div><div class="refsect1" id="id-1.9.3.173.5"><h2>Description</h2><p> + <code class="command">SELECT INTO</code> creates a new table and fills it + with data computed by a query. The data is not returned to the + client, as it is with a normal <code class="command">SELECT</code>. The new + table's columns have the names and data types associated with the + output columns of the <code class="command">SELECT</code>. + </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> + If specified, the table is created as a temporary table. Refer + to <a class="xref" href="sql-createtable.html" title="CREATE TABLE"><span class="refentrytitle">CREATE TABLE</span></a> for details. + </p></dd><dt><span class="term"><code class="literal">UNLOGGED</code></span></dt><dd><p> + If specified, the table is created as an unlogged table. Refer + to <a class="xref" href="sql-createtable.html" title="CREATE TABLE"><span class="refentrytitle">CREATE TABLE</span></a> for details. + </p></dd><dt><span class="term"><em class="replaceable"><code>new_table</code></em></span></dt><dd><p> + The name (optionally schema-qualified) of the table to be created. + </p></dd></dl></div><p> + All other parameters are described in detail under <a class="xref" href="sql-select.html" title="SELECT"><span class="refentrytitle">SELECT</span></a>. + </p></div><div class="refsect1" id="id-1.9.3.173.7"><h2>Notes</h2><p> + <a class="link" href="sql-createtableas.html" title="CREATE TABLE AS"><code class="command">CREATE TABLE AS</code></a> is functionally similar to + <code class="command">SELECT INTO</code>. <code class="command">CREATE TABLE AS</code> + is the recommended syntax, since this form of <code class="command">SELECT + INTO</code> is not available in <span class="application">ECPG</span> + or <span class="application">PL/pgSQL</span>, because they interpret the + <code class="literal">INTO</code> clause differently. Furthermore, + <code class="command">CREATE TABLE AS</code> offers a superset of the + functionality provided by <code class="command">SELECT INTO</code>. + </p><p> + In contrast to <code class="command">CREATE TABLE AS</code>, <code class="command">SELECT + INTO</code> does not allow specifying properties like a table's access + 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 + 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 + <code class="command">CREATE TABLE AS</code> if necessary. Therefore, the default table + 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. + </p></div><div class="refsect1" id="id-1.9.3.173.8"><h2>Examples</h2><p> + Create a new table <code class="literal">films_recent</code> consisting of only + recent entries from the table <code class="literal">films</code>: + +</p><pre class="programlisting"> +SELECT * INTO films_recent FROM films WHERE date_prod >= '2002-01-01'; +</pre></div><div class="refsect1" id="id-1.9.3.173.9"><h2>Compatibility</h2><p> + The SQL standard uses <code class="command">SELECT INTO</code> to + represent selecting values into scalar variables of a host program, + rather than creating a new table. This indeed is the usage found + in <span class="application">ECPG</span> (see <a class="xref" href="ecpg.html" title="Chapter 36. ECPG — Embedded SQL in C">Chapter 36</a>) and + <span class="application">PL/pgSQL</span> (see <a class="xref" href="plpgsql.html" title="Chapter 43. PL/pgSQL — SQL Procedural Language">Chapter 43</a>). + The <span class="productname">PostgreSQL</span> usage of <code class="command">SELECT + INTO</code> to represent table creation is historical. Some other SQL + implementations also use <code class="command">SELECT INTO</code> in this way (but + most SQL implementations support <code class="command">CREATE TABLE AS</code> + instead). Apart from such compatibility considerations, it is best to use + <code class="command">CREATE TABLE AS</code> for this purpose in new code. + </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 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> SET</td></tr></table></div></body></html>
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