Re: insert data

[Michael Stassen]

I sent this earlier, but it doesn't seem to have gone through.  Apologies to 
anyone who gets it twice.

=========
From perldoc DBD::mysql
  use DBI;
  $dsn = "DBI:mysql:database=$database;host=$hostname;port=$port";
  $dbh = DBI->connect($dsn, $user, $password);
So it's not a syntax problem.  Even if it were, we should detect the error 
long before calling prepare or execute.

Perl is quite clearly telling you what is wrong.  Originally, you got
  Can't call method "prepare" on an undefined value.
for the line
  my $sth = $dbh->prepare( $sql );
which means that $dbh is undefined at the time of the call to prepare.
Now, you are getting
  Can't call method "execute" on an un undefined value
for the line
  $sth->execute( $group_name, $me, $daily, $item, $unit, $qty, $amount,
    $tax, $total ) or warn "Cannot execute FIRST Statement!!\n$DBI::errstr";
which means that $sth is undefined at the time of the call to execute.
Are you showing us select lines of your code, rather than the actual code? 
My best guess right now is that you haven't taken into account that "my" is 
a scoping operator in perl, and in the lines you haven't showed us, the 
variables in question ($dbh or $sth) go out of scope.

Michael
John Doe wrote:
Am Sonntag, 27. Februar 2005 22.19 schrieb Gerald Preston:
Hi Gerald

The object used:
 my $dbh=DBI->connect( 'DBI:mysql:database=club', 'xxx, 'xxxxx', {
PrintError => 0} ) or die $DBI::errstr;

I didn't see this part in your first post :-)
Hmm... I've never seen a '=' in the first argument passed to DBI-connect...
Here's an functional example I'm using:
my $db ='database';
my $host ='hostname';
my $port ='1234';
$dbh=DBI->connect("DBI:mysql:$db:$host:$port",
     'a_username',
     'a_password',
     {RaiseError=>1,   
     AutoCommit=>1}) 
    or die "$0: $DBI::errstr"; }

So, try using "club" instead of "database=club", and a hostname too.
greetings joe
[nothing new below]

-----Original Message-----
From: John Doe [mailto:[EMAIL PROTECTED]
Sent: Sunday, February 27, 2005 6:37 AM
To: mysql@lists.mysql.com
Subject: Re: insert data
Hi Gerald

I am trying to insert data for the first time using MySQL.  In Oracle I
used the following:
#  my $sql = "insert into bar( group_name, me, daily, item, unit, qty,
amount, tax, total )
#                      values( ?,          ?,  ?,     ?,    ?,    ?,   ?,
?,   ? ) ";
 my $sth = $dbh->prepare( $sql );
 die $dbh->errstr if $dbh->err;
 $sth->execute( $group_name, $me, $daily, $item, $unit, $qty, $amount,
$tax, $total ) || die "Cannot execute FIRST Statement!!\n$DBI::errstr";
I keep getting "Can't call method "prepare" on an un undefined value. 
All the name listed are correct by looking at MySQLAdmin1.3\4.
Apart from David Logan's answer:
You have to create the $dbh object first (man DBI); the "undefined value"
in the error message refers to that.
HTH
joe

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