I put the header data in a code tag, but it didn't get wrapped. Corion and I spoke about it.

@origcols is the problem. I am getting that from reading my csv file. I can't hardcode it since the column headers are not constants. I tried to do the following:

#!/usr/bin/perl
    use strict;
    use warnings;
    use DBI;
    #use Text::CSV;

    # Connect to the database, (the directory containing our csv file(
+s))
    my $dbh = DBI->connect("DBI:CSV:f_dir=.;csv_eol=\n;");

    # Associate our csv file with the table name 'results'
    $dbh->{'csv_tables'}->{'results'} = { 'file' => 'test.csv'};

    my $sth = $dbh->prepare("SELECT * FROM results WHERE 1=0");
    $sth->execute;
    my @origcols = @{$sth->{NAME}};
    my @cols; # = @origcols;
    shift @origcols;
    foreach ( @origcols ) {
       $_ =~ s/\.//g ;
       push ( @cols , $_ ); # unless /Bandwidth.*|MSTCPLoop.*/ ;
    }
    print ("@cols \n");
[download]

It errors out with:
Use of uninitialized value in join or string at ./runsql3.sql line 19.
Use of uninitialized value in join or string at ./runsql3.sql line 23.

It also prints out the column headers except the one with the period in it. My guess is that there is an error happening with the SQL SELECT statement. I don't think it likes the period.

Just to clear things up, here is all my code:

#!/usr/bin/perl
    use strict;
    use warnings;
    use DBI;
    #use Text::CSV;

    # Connect to the database, (the directory containing our csv file(
+s))
    my $dbh = DBI->connect("DBI:CSV:f_dir=.;csv_eol=\n;");

    # Associate our csv file with the table name 'results'
    $dbh->{'csv_tables'}->{'results'} = { 'file' => 'test.csv'};

    my $sth = $dbh->prepare("SELECT * FROM results WHERE 1=0");
    $sth->execute;
    my @origcols = @{$sth->{NAME}};
    my @cols; # = @origcols;
    shift @origcols;
    foreach ( @origcols ) {
       $_ =~ s/\.//g ;
       push ( @cols , $_ ); # unless /Bandwidth.*|MSTCPLoop.*/ ;
    };

    my $avgSQL =
      'SELECT '
      . join(', ', map { "avg($_) \n" } @cols )
      . ' FROM results';
    my @avgs = $dbh->selectrow_array($avgSQL);

    my %avgsHash;
    @avgsHash{ @cols } = @avgs;  
    print "Col,Avg\n";
    printf("%s,%f\n", $_, $avgsHash{$_}) for @cols;
[download]

Everything works except when there is a . in one of the headers. Then it fails.

Data in the columns that I am averaging can contain decimals, otherwise I'd just strip out all periods before starting.
I'm trying to add the slpit statement, but am not sure where/how to use it.

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