SELECT INTO

Name

SELECT INTO -- create a new table from the results of a query

Synopsis

SELECT [ ALL | DISTINCT [ ON (  expression [, ...] ) ] ]
    * |  expression [ AS  output_name ] [, ...]
    INTO [ TEMPORARY | TEMP ] [ TABLE ]  new_table
    [ FROM  from_item [, ...] ]
    [ WHERE  condition ]
    [ GROUP BY  expression [, ...] ]
    [ HAVING  condition [, ...] ]
    [ { UNION | INTERSECT | EXCEPT } [ ALL ]  select ]
    [ ORDER BY  expression [ ASC | DESC | USING  operator ] [, ...] ]
    [ LIMIT {  count | ALL } ]
    [ OFFSET  start ]
    [ FOR UPDATE [ OF  tablename [, ...] ] ]

Inputs

TEMPORARY
TEMP

If specified, the table is created as a temporary table. Refer to CREATE TABLE for details.

new_table

The name (optionally schema-qualified) of the table to be created.

All other inputs are described in detail for SELECT.

Outputs

Refer to CREATE TABLE and SELECT for a summary of possible output messages.

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.

Note: CREATE TABLE AS is functionally equivalent to SELECT INTO. CREATE TABLE AS is the recommended syntax, since SELECT INTO is not standard. In fact, this form of SELECT INTO is not available in PL/pgSQL or ecpg, because they interpret the INTO clause differently.

Compatibility

SQL92 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 PL/pgSQL and ecpg. The PostgreSQL usage of SELECT INTO to represent table creation is historical. It's best to use CREATE TABLE AS for this purpose in new code. (CREATE TABLE AS isn't standard either, but it's less likely to cause confusion.)


This file was copied from PostgreSQL 7.3.1 help system.