Hi Tony,
I created a module to do this for SPOPS. I've tested this on MySQL, PostgreSQL and DB2/AS400 thru ODBC. Basically, all you need to do is issue a dummy query against a table so DBI can grab the metadata. Here's an example:
my $dbh = DBI->connect( ... )
|| die "Error connecting: $DBI::errstr";
$dbh->{RaiseError} = 1;
my $sql = "SELECT * FROM $table where 1 = 0";
my ( $sth );
eval {
$sth = $dbh->prepare( $sql );
$sth->execute;
};
if ( $@ ) { die "Cannot fetch column info: $@" }
my @column_names = @{ $sth->{NAME} };
my @column_types = @{ $sth->{TYPE} };
I think most DBDs support this basic metadata. Whenever I've found one that didn't support both of these (like DBD::ASAny at one time), I've harrangued the author and always gotten a quick response :-)
Chris
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