Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation
 
PerlMonks  

Re: How to retrieve element in hash?

by t_rex_joe (Acolyte)
on Nov 30, 2012 at 17:39 UTC ( #1006504=note: print w/replies, xml ) Need Help??


in reply to How to retrieve element in hash?

MD, You may going about using the "field delimiter" in the wrong context. I prefer using "bind columns", this will keep the returned records (fields) more organized. I know you mentioned a "CSV file" however the tables/databases will change your mind with scale.

use DBI; #### MY SQL $dbhost = "10.1.1.15"; $dbh = undef; $db = "ip_track"; $user = "mysql"; $pass = "mysql_admin"; $connect = "DBI:mysql:database=$db;$dbhost:3306"; #### EO MYSQL $dbh = undef; $query = undef; $sth = undef; $ect = 0; @row = (); $db +ok = 1; $dbh = DBI->connect($connect,$user,$pass, { PrintError => 1, RaiseEr +ror => 0, AutoCommit => 1 }) or warn "DBERR: $DBI::errstr \"" . __LIN +E__ . "\n"; $query = "SELECT cllseen FROM tblipdec where clipdec = ?"; if($debug == 1) { print "QUERY: \"$query\"\n"; } $sth = $dbh->prepare($query); $sth->execute($ipdec); my $mts = undef; $sth->bind_columns(undef, \$mts); while(@row = $sth->fetchrow_array()) { $ect++; } $sth->finish; $dbh- +>disconnect; if($debug == 1) { print "ECT: \"$ect\"\n"; } if($debug == 1) { print "MTS: \"$mts\"\n"; }

this snippet of "clipdec = ?" is VERY important, this is how you can pass variables directly to the DB. This will help with mitigating sql injection. The book "MySQL and perl for the web" was my intro into programming with DBs. "http://www.kitebird.com/mysql-perl/" Joe.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1006504]
help
Chatterbox?
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others scrutinizing the Monastery: (6)
As of 2016-12-04 15:35 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    On a regular basis, I'm most likely to spy upon:













    Results (67 votes). Check out past polls.