From: | David G Johnston <david(dot)g(dot)johnston(at)gmail(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Why data returned inside parentheses in for loop |
Date: | 2014-09-29 19:34:46 |
Message-ID: | 1412019286556-5820984.post@n5.nabble.com |
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Thread: | |
Lists: | pgsql-sql |
wujee wrote
> Dear all,
>
> I have a simple query but the data returns inside parentheses, I think
> there may be parameters that control this behavior but not sure what it
> is.
>
> This is what I Have:
> begin
> for i in (select salary from salaries where employee_id > 1001) loop
> dbms_output.put_line('i value: '||i);
> end loop;
> end;
>
>
> And I got the result as the followings:
> i value: (375402)
> i value: (37539)
> i value: (375394)
>
>
> I do not want "(" and ")" in between the values, how should I do that?
>
>
> Thanks,
> Tina
dbms_output.put_line('i value: ' || i.salary)
"i" is a record type that has a single "salary" column. If it had two
columns, say "SELECT name, salary FROM ..." you would have gotten (correct
quoting not withstanding):
i value: ('Name', 375402)
pl/pgsql does not automatically reduce a single column to be a simple scalar
- the "for rec_var in (query)" always results in rec_var being of type
"record".
David J.
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