Perl 如何连接 OceanBase 数据库

#!/usr/bin/env perl
use strict;
use warnings;
use DBI();

# Connect to the database.
my $dbh = DBI->connect("DBI:mysql:database=test;host=xxx.xxx.xxx.xxx;port=45447",
                       "admin", "admin",
                       {'RaiseError' => 1});

# Drop table 'foo'. This may fail, if 'foo' doesn't exist.
# Thus we put an eval around it.
$dbh->do("DROP TABLE IF EXISTS foo");

# Create a new table 'foo'. This must not fail, thus we don't
# catch errors.
$dbh->do("CREATE TABLE foo (id INTEGER primary key, name VARCHAR(20))");

# INSERT some data into 'foo'. We are using $dbh->quote() for
# quoting the name.
$dbh->do("INSERT INTO foo VALUES (1, " . $dbh->quote("Tim") . ")");

# Same thing, but using placeholders
$dbh->do("INSERT INTO foo VALUES (?, ?)", undef, 2, "Jochen");

# Now retrieve data from the table.
my $sth = $dbh->prepare("SELECT * FROM foo");
$sth->execute();
while (my $ref = $sth->fetchrow_hashref()) {
    print "Found a row: id = $ref->{'id'}, name = $ref->{'name'}\n";
}
$sth->finish();

# Disconnect from the database.
$dbh->disconnect();