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><H1
><A
NAME="SQL-SELECTINTO"
></A
>SELECT INTO</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN54265"
></A
><H2
>Name</H2
>SELECT INTO -- define a new table from the results of a query</DIV
><A
NAME="AEN54268"
></A
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN54270"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>SELECT [ ALL | DISTINCT [ ON ( <TT
CLASS="REPLACEABLE"
><I
>expression</I
></TT
> [, ...] ) ] ]
* | <TT
CLASS="REPLACEABLE"
><I
>expression</I
></TT
> [ AS <TT
CLASS="REPLACEABLE"
><I
>output_name</I
></TT
> ] [, ...]
INTO [ TEMPORARY | TEMP ] [ TABLE ] <TT
CLASS="REPLACEABLE"
><I
>new_table</I
></TT
>
[ FROM <TT
CLASS="REPLACEABLE"
><I
>from_item</I
></TT
> [, ...] ]
[ WHERE <TT
CLASS="REPLACEABLE"
><I
>condition</I
></TT
> ]
[ GROUP BY <TT
CLASS="REPLACEABLE"
><I
>expression</I
></TT
> [, ...] ]
[ HAVING <TT
CLASS="REPLACEABLE"
><I
>condition</I
></TT
> [, ...] ]
[ { UNION | INTERSECT | EXCEPT } [ ALL ] <TT
CLASS="REPLACEABLE"
><I
>select</I
></TT
> ]
[ ORDER BY <TT
CLASS="REPLACEABLE"
><I
>expression</I
></TT
> [ ASC | DESC | USING <TT
CLASS="REPLACEABLE"
><I
>operator</I
></TT
> ] [, ...] ]
[ LIMIT { <TT
CLASS="REPLACEABLE"
><I
>count</I
></TT
> | ALL } ]
[ OFFSET <TT
CLASS="REPLACEABLE"
><I
>start</I
></TT
> ]
[ FOR { UPDATE | SHARE } [ OF <TT
CLASS="REPLACEABLE"
><I
>table_name</I
></TT
> [, ...] ] [ NOWAIT ] [...] ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN54286"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>SELECT INTO</TT
> 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 <TT
CLASS="COMMAND"
>SELECT</TT
>. The new
table's columns have the names and data types associated with the
output columns of the <TT
CLASS="COMMAND"
>SELECT</TT
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN54292"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="LITERAL"
>TEMPORARY</TT
> or <TT
CLASS="LITERAL"
>TEMP</TT
></DT
><DD
><P
> If specified, the table is created as a temporary table. Refer
to <A
HREF="sql-createtable.html"
><I
>CREATE TABLE</I
></A
> for details.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_table</I
></TT
></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
HREF="sql-select.html"
><I
>SELECT</I
></A
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN54309"
></A
><H2
>Notes</H2
><P
> <A
HREF="sql-createtableas.html"
><I
>CREATE TABLE AS</I
></A
> is functionally similar to
<TT
CLASS="COMMAND"
>SELECT INTO</TT
>. <TT
CLASS="COMMAND"
>CREATE TABLE AS</TT
>
is the recommended syntax, since this form of <TT
CLASS="COMMAND"
>SELECT
INTO</TT
> is not available in <SPAN
CLASS="APPLICATION"
>ECPG</SPAN
>
or <SPAN
CLASS="APPLICATION"
>PL/pgSQL</SPAN
>, because they interpret the
<TT
CLASS="LITERAL"
>INTO</TT
> clause differently. Furthermore,
<TT
CLASS="COMMAND"
>CREATE TABLE AS</TT
> offers a superset of the
functionality provided by <TT
CLASS="COMMAND"
>SELECT INTO</TT
>.
</P
><P
> Prior to <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> 8.1, the table created by
<TT
CLASS="COMMAND"
>SELECT INTO</TT
> included OIDs by default. In
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> 8.1, this is not the case
— to include OIDs in the new table, the <A
HREF="runtime-config-compatible.html#GUC-DEFAULT-WITH-OIDS"
>default_with_oids</A
> configuration variable must be
enabled. Alternatively, <TT
CLASS="COMMAND"
>CREATE TABLE AS</TT
> can be
used with the <TT
CLASS="LITERAL"
>WITH OIDS</TT
> clause.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN54328"
></A
><H2
>Examples</H2
><P
> Create a new table <TT
CLASS="LITERAL"
>films_recent</TT
> consisting of only
recent entries from the table <TT
CLASS="LITERAL"
>films</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>SELECT * INTO films_recent FROM films WHERE date_prod >= '2002-01-01';</PRE
><P>
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN54334"
></A
><H2
>Compatibility</H2
><P
> The SQL standard uses <TT
CLASS="COMMAND"
>SELECT INTO</TT
> 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
HREF="ecpg.html"
>Chapter 31</A
>) and
<SPAN
CLASS="APPLICATION"
>PL/pgSQL</SPAN
> (see <A
HREF="plpgsql.html"
>Chapter 37</A
>).
The <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> usage of <TT
CLASS="COMMAND"
>SELECT
INTO</TT
> to represent table creation is historical. It is
best to use <TT
CLASS="COMMAND"
>CREATE TABLE AS</TT
> for this purpose in
new code.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN54345"
></A
><H2
>See Also</H2
><A
HREF="sql-createtableas.html"
><I
>CREATE TABLE AS</I
></A
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