On Thu, Apr 12, 2012 at 2:06 PM, Zbigniew <zbigniew2...@gmail.com> wrote:
> At the attempt to get a non-existing value, for example:
>
> set x [dbcomm eval {SELECT max(somecolumn) FROM sometable}]
>
The correct way to do this would be one or other other of the following:
set x [lindex [dbcomm eval {SELECT max(somecolumn) FROM sometable}]
set x [dbcomm onecolumn eval {SELECT max(somecolumn) FROM sometable}]
In the second example, it is traditional to abbreviate "onecolumn" to
simply "one".
>
> The returned value of $x will be {} - and no, not "empty", but exactly
> these two characters.
>
> Easy to reproduce.
> --
> Zbigniew
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--
D. Richard Hipp
d...@sqlite.org
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