From: | Chris <dmagick(at)gmail(dot)com> |
---|---|
To: | Patrick B <patrickbakerbr(at)gmail(dot)com> |
Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: postgres insert + select + values - Pgsql 9.5 |
Date: | 2016-09-15 22:17:32 |
Message-ID: | 479f1c9b-58a5-94e5-675b-b515e348fd94@gmail.com |
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Thread: | |
Lists: | pgsql-general |
On 16/09/16 08:07, Patrick B wrote:
>
>
> A select can make up columns too, not just what you've got in a table,
> so you can:
>
> select j_id, 'test-1 - comments' as comment from test2 where
> customer_id=88897;
>
> and then you can simply insert that into your other table (you don't
> need to specify the columns that are getting a default value):
>
> insert into test1 (j_id, comments)
> select j_id, 'test-1 - comments' as comment from test2 where
> customer_id=88897;
>
> https://www.postgresql.org/docs/current/static/sql-insert.html
> <https://www.postgresql.org/docs/current/static/sql-insert.html> has
> more
> info.
>
>
> Thanks Chris!
>
> But the problem is that test2 table has 180 rows with different j_id and
> I need to insert each one of them into test1 table.
>
> How can I do that?
> select j_id FROM test2 - will return 180 rows
>
If your select returns 180 rows, then an `insert into select` query
would insert 180 rows (assuming other constraints like primary / unique
keys are met).
--
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