Updating lots of database fields in a single row

[William Blunn]

On 23/01/2013 09:40, Ruud H.G. van Tol wrote:
> On 2013-01-23 10:27, William Blunn wrote:
>
>> my @fields_to_update = grep { $hash->{$_} } @fields;
>
> Be aware that it skips any false value, like undef, '', '0', 0.

Absolutely.

I wouldn't usually do a straight truth test on a scalar value myself, 
unless the preceding code logic meant that it contained a boolean value.

I only coded it this way to match that part of the original semantics.

I think the OP would be well advised to consider using a more explicit 
test such as:

exists $hash->{$_}

Regards,

Bill