Read 'perldoc DBI'
As a convenience, if the $data_source parameter is
undefined or empty the DBI will substitute the value
of the environment variable DBI_DSN. If just the
driver_name part is empty (i.e., data_source prefix is
'dbi::') the environment variable DBI_DRIVER is used.
my ($username, $password) = ('foo', 'bar');
my $data_source = "DBI:mysql:database=some_database;host=localhost";
and:
$dbh = DBI->connect($data_source, $username, $password) || die
$DBI::errstr;
or
$dbh = DBI->connect($data_source, $username, $password, \%attr) || die
$DBI::errstr;
/Jon
yun yun wrote:
>
> I programmed a .pl use DBI, but it says that "
>
> Can't connect(DBI::Access::db1 HASH(0x1aff0bc)), no
> database driver specified
> and DBI_DSN env var not set at edit3.pl line 10
> "
> How should I set the DBI_DSB env var?
>
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