Обсуждение: insert into table from list or array ?
Hi, is it possible to insert into a table from list or an array ? Suppose there is a set of numbers that might be IDs of tables within the DB. To work with them I'd need a temporary table that just holds a single column with those numbers. Something like create temporary table tmptable as select id from ( 2, 3, 5, 7, 11, 13, 17, 19, 23, 31, 37, ... ); would be great. I get those numbers as textfile with 10 numbers per line and devided by comma+space as in the sample above, though the comma+space is negotiable if this were an issue. :)
i think that you can try to
create temporary table tmptable(id integer, numbers integer[]);
and
insert into table values (1,array[2, 3, 5, 7, 11, 13, 17, 19, 23, 31, 37, ...]);
On Mon, Oct 18, 2010 at 8:00 PM, Andreas <maps.on@gmx.net> wrote:
Hi,
is it possible to insert into a table from list or an array ?
Suppose there is a set of numbers that might be IDs of tables within the DB.
To work with them I'd need a temporary table that just holds a single column with those numbers.
Something like
create temporary table tmptable as select id from
( 2, 3, 5, 7, 11, 13, 17, 19, 23, 31,
37, ... );
would be great.
I get those numbers as textfile with 10 numbers per line and devided by comma+space as in the sample above, though the comma+space is negotiable if this were an issue.
:)
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---------------------------------------
Viktor Bojović
---------------------------------------
Wherever I go, Murphy goes with me
Hello
2010/10/18 Andreas <maps.on@gmx.net>:
> Hi,
>
> is it possible to insert into a table from list or an array ?
>
yes, it's possible
INSERT INTO tmptab SELECT v FROM unnest(string_to_array('1,2,4,2,1',',')) g(v)
Regards
Pavel Stehule
> Suppose there is a set of numbers that might be IDs of tables within the DB.
> To work with them I'd need a temporary table that just holds a single column
> with those numbers.
> Something like
>
> create temporary table tmptable as select id from
> ( 2, 3, 5, 7, 11, 13, 17, 19, 23, 31,
> 37, ... );
>
> would be great.
>
> I get those numbers as textfile with 10 numbers per line and devided by
> comma+space as in the sample above, though the comma+space is negotiable if
> this were an issue.
>
> :)
>
> --
> Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-sql
>
Am 18.10.2010 20:14, schrieb Pavel Stehule:
> 2010/10/18 Andreas:
>> is it possible to insert into a table from list or an array ?
> yes, it's possible
>
> INSERT INTO tmptab
> SELECT v
> FROM unnest(string_to_array('1,2,4,2,1',',')) g(v)
>
Thanks Pavel,
though I'm just not yet 100% aware how it works but it works. :)