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dbd::firebird::tableinfo::basic
DBD::Firebird::TableInfo::Basic(3pm) User Contributed Perl Documentation DBD::Firebird::TableInfo::Basic(3pm)
NAME
DBD::Firebird::TableInfo::Basic - A base class for lowest-common denominator Interbase table_info() querying.
SYNOPSIS
# Add support for a hypothetical IB derivative
package DBD::Firebird::TableInfo::HypotheticalIBDerivative
@ISA = qw(DBD::Firebird::TableInfo::Basic);
# What table types are supported?
sub supported_types {
('SYSTEM TABLE', 'TABLE', 'VIEW', 'SPECIAL TABLE TYPE');
}
sub table_info {
my ($self, $dbh, $table, @types) = @_;
}
INTERFACE
list_catalogs
$ti->list_catalogs($dbh); # $dbh->table_info('%', '', '')
Returns a statement handle with an empty result set, as IB does not support the DBI concept of catalogs. (Rule 19a)
list_schema
$ti->list_schema($dbh); # $dbh->table_info('', '%', '')
Returns a statement handle with an empty result set, as IB does not support the DBI concept of schema. (Rule 19b)
list_tables
$ti->list_tables($dbh, $table, @types); # $dbh->table_info('', '',
# 'FOO%',
# 'TABLE,VIEW');
Called in response to $dbh->table_info($cat, $schem, $table, $types). $cat and $schem are presently ignored.
This is the workhorse method that must return an appropriate statement handle of tables given the requested $table pattern and @types.
A blank $table pattern means "any table," and an empty @types list means "any type."
@types is a list of user-supplied, requested types. "DBD::Firebird::db::table_info" will normalize the user-supplied types, stripping
quote marks, uppercasing, and removing duplicates.
list_types
$tbl_info->list_types($dbh); # $dbh->table_info('', '', '', '%')
Called in response to $dbh->table_info('', '', '', '%'), returning a statement handle with a TABLE_TYPE column populated with the
results of supported_types. (Rule 19c)
Normally not overridden. Override supported_types, instead.
supported_types
$tbl_info->supported_types($dbh);
Returns a list of supported DBI TABLE_TYPE entries. The default implementation supports 'TABLE', 'SYSTEM TABLE' and 'VIEW'.
This method is called by the default implementation of "list_types".
perl v5.14.2 2011-08-30 DBD::Firebird::TableInfo::Basic(3pm)