Re: Can I unite 2 selects?

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От Sterpu Victor
Тема Re: Can I unite 2 selects?
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Msg-id em4c3a1e80-37e9-498c-8275-64f0f4849c2e@victor-pc
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Ответ на Re: Can I unite 2 selects?  (Adrian Klaver <adrian.klaver@aklaver.com>)
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Thank you.
This is the syntax I was looking for.

------ Original Message ------
From: "Adrian Klaver" <adrian.klaver@aklaver.com>
To: "Sterpu Victor" <victor@caido.ro>; "PostgreSQL General"
<pgsql-general@postgresql.org>
Sent: 1/29/2015 9:09:31 PM
Subject: Re: [GENERAL] Can I unite 2 selects?

On 01/29/2015 10:58 AM, Sterpu Victor wrote:
Hello
Can I write a query where I receive a single result set from many
queries?
Something like this: SELECT (SELECT 1 AS t1, 2 AS t2), (SELECT 3 AS t3)
I tried exactly this but the error is: "ERROR: subquery must return
only one column"
But I don't see why it must have only one column.

postgres@test=# SELECT * from (SELECT 1 AS t1, 2 AS t2) as t, (SELECT 3
AS t3) as s;
t1 | t2 | t3
----+----+----
1 | 2 | 3


Thank you



-- Adrian Klaver
adrian.klaver@aklaver.com


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