Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
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 the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (7)
As of 2016-06-27 06:48 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My preferred method of making French fries (chips) is in a ...











    Results (336 votes). Check out past polls.