In article <Pine.LNX.4.21.0210211547390.3016-100000@ponder.fairway2k.co.uk>,
nandrews@investsystems.co.uk ("Nigel J. Andrews") writes:
> On Mon, 21 Oct 2002 mk@fashaf.co.za wrote:
>> I have tried '' , undef , 'NULL' , 'null' non of them seem to work?
>>
>> any idea how to submit a NULL value with perl?
>>
> Okay, let's take a step back to view the slightly larger picture rather than
> the little detail...
> With a design such as:
> create table t1 (
> i int primary key
> );
> create table t2 (
> i int primary key,
> t text,
> a int references t1 (a)
> );
> your perl code should be submitting a string such as, note the lack of quotes
> around the null:
> insert into mytable values ( 23, 'my text', NULL )
> i.e.
> use Pg;
> # connect to server etc.
> $conn->exec("insert into mytable values ( 23, 'my text', NULL )");
> # error check etc.
You could also let Perl do the quoting for you:
use DBI;
> # connect to server etc.
$conn->do (q{
INSERT INTO mytable VALUES (?, ?, ?)
}, undef, 23, "my text", undef);
