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sekimura (3756)

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Journal of sekimura (3756)

Thursday April 19, 2007
01:18 AM


package DBD::Util::Bundle;


    my $dbh0 = DBI->connect( 'dbi:mysql:database=myfoo', 'doh' );
    my $dbh1 = DBI->connect( 'dbi:Pg:dbname=pgfoo', 'ugh' );

    my $bbh = DBD::Util::Bundle->new(dbh_stack => [$dbh0, $dbh1]);

    $bbh->prepare('SELECT * FROM bookshelf WHERE book_id >= 10');

    use Data::Dumper;
    use YAML;
    while ( my ($aref0, $aref1) = $bbh->fetchrow_arrayref ) {
        my ($dump0, $dmup1) = map { YAML::Dump $_ } ($aref0, $aref1);
        print "SRC $dump0 DST $dump1" if $dump0 ne $dump1;


sub new {
    my $class = shift;
    my %args = @_;
    my $self = bless {}, $class;
    $self->{dbh_stack} = $args{dbh_stack};
    return $self;

sub prepare {
    my $self = shift;
    my ( @args ) = @_;
    my @ret;
    for my $dbh (@{$self->{dbh_stack}}) {
        push @ret, $dbh->prepare(@args);
    $self->{sth_stack} = \@ret;
    return @ret;

sub execute {
    my $self = shift;
    my ( @args ) = @_;
    my @ret;
    for my $sth (@{$self->{sth_stack}}) {
        push @ret, $sth->execute(@args);
    return @ret;

sub fetchrow_arrayref {
    my $self = shift;
    my @ret;
    for my $sth (@{$self->{sth_stack}}) {
        my $aref = $sth->fetchrow_arrayref or return;
        push @ret, $aref;
    return @ret;
Friday April 13, 2007
12:07 PM

a simple SQL client

now I'm writing a simple SQL client that can connect multiple database servers. for some reasons I need to connect to MySQL and PostgreSQL.

using "screen" and "mysql + psql" works but sometimes I wanna share a term history on each SQL clients.

so, I'm doing it. Term::Shell and Text::ASCIITable rock.

TODO: handle '*', '%' and more SQL special chars.

UPDATE found DBI::Shell but it can't handle multiple DBI connections.