The following code works for me but I want to know how to change the query so that it will select rows based on matches in two columns. In SQL this would be something like SELECT * FROM charge WHERE colA = 'cat' AND colB = 'dog'. I am not sure how to translate that into a perl script. I am looking to get input from terminal like, What is the value to match in columnA? cat <enter> What is the value to match in columnB? dog <enter>

#!/usr/bin/perl -w
# first experiments in perl front end for mysql queries
use strict;
use warnings;
use DBI;

        my $dbh = DBI->connect('dbi:mysql:mydatabase:localhost:3306','
+abc','xyz')
                or die "Couldn't connect to database: " . DBI->errstr;
        my $sth = $dbh->prepare('SELECT * FROM charge WHERE cpt = ?')
                or die "Couldn't prepare statement: " . $dbh->errstr;

        print "Enter cpt code> ";
        while (my $cptcode = <>) {               # Read input from the
+ user
                my @data;
                chomp $cptcode;
                exit 0 if ($cptcode eq "");
                $sth->execute($cptcode)             # Execute the quer
+y
                or die "Couldn't execute statement: " . $sth->errstr;

        # Read the matching records and print them out
        while (@data = $sth->fetchrow_array()) {
                my $cptanswer = $data[1];
                my $insid = $data[2];
                my $preauth = $data[3];
                my $updated = $data[5];
                print "\t$cptanswer\t$insid\t$preauth\t$updated\n";
        }

        if ($sth->rows == 0) {
                print "No names matched `$cptcode'.\n\n";
        }

        $sth->finish;
        print "\n";
        print "Enter cpt code> ";
        }

        $dbh->disconnect;
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