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Re: Can I unite 2 selects?

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On 1/29/2015 10:58 AM, Sterpu Victor wrote:
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.

do you want

    1 | 2 | 3

or

    1
    2
    3

as your result?  the first is a join, the 2nd is a union.

--
john r pierce                                      37N 122W
somewhere on the middle of the left coast



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