| SELECT_INTO(7) - phpMan
SELECT INTO(7) PostgreSQL 12.3 Documentation SELECT INTO(7)
NAME
SELECT_INTO - define a new table from the results of a query
SYNOPSIS
[ WITH [ RECURSIVE ] with_query [, ...] ]
SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ]
* | expression [ [ AS ] output_name ] [, ...]
INTO [ TEMPORARY | TEMP | UNLOGGED ] [ TABLE ] new_table
[ FROM from_item [, ...] ]
[ WHERE condition ]
[ GROUP BY expression [, ...] ]
[ HAVING condition [, ...] ]
[ WINDOW window_name AS ( window_definition ) [, ...] ]
[ { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] select ]
[ ORDER BY expression [ ASC | DESC | USING operator ] [ NULLS { FIRST | LAST } ] [, ...] ]
[ LIMIT { count | ALL } ]
[ OFFSET start [ ROW | ROWS ] ]
[ FETCH { FIRST | NEXT } [ count ] { ROW | ROWS } ONLY ]
[ FOR { UPDATE | SHARE } [ OF table_name [, ...] ] [ NOWAIT ] [...] ]
DESCRIPTION
SELECT INTO 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 SELECT. The new table's columns have
the names and data types associated with the output columns of the SELECT.
PARAMETERS
TEMPORARY or TEMP
If specified, the table is created as a temporary table. Refer to CREATE TABLE
(CREATE_TABLE(7)) for details.
UNLOGGED
If specified, the table is created as an unlogged table. Refer to CREATE TABLE
(CREATE_TABLE(7)) for details.
new_table
The name (optionally schema-qualified) of the table to be created.
All other parameters are described in detail under SELECT(7).
NOTES
CREATE TABLE AS (CREATE_TABLE_AS(7)) is functionally similar to SELECT INTO. CREATE TABLE
AS is the recommended syntax, since this form of SELECT INTO is not available in ECPG or
PL/pgSQL, because they interpret the INTO clause differently. Furthermore, CREATE TABLE AS
offers a superset of the functionality provided by SELECT INTO.
In contrast to CREATE TABLE AS, SELECT INTO does not allow to specify properties like a
table's access method with USING method or the table's tablespace with TABLESPACE
tablespace_name. Use CREATE TABLE AS (CREATE_TABLE_AS(7)) if necessary. Therefore, the
default table access method is chosen for the new table. See default_table_access_method
for more information.
EXAMPLES
Create a new table films_recent consisting of only recent entries from the table films:
SELECT * INTO films_recent FROM films WHERE date_prod >= '2002-01-01';
COMPATIBILITY
The SQL standard uses SELECT INTO to represent selecting values into scalar variables of a
host program, rather than creating a new table. This indeed is the usage found in ECPG
(see Chapter 35) and PL/pgSQL (see Chapter 42). The PostgreSQL usage of SELECT INTO to
represent table creation is historical. It is best to use CREATE TABLE AS for this purpose
in new code.
SEE ALSO
CREATE TABLE AS (CREATE_TABLE_AS(7))
PostgreSQL 12.3 2020 SELECT INTO(7)
|