Current File : C:/xampp/perl/vendor/lib/DBIx/Class/Storage/DBI/DB2.pm
package DBIx::Class::Storage::DBI::DB2;
use strict;
use warnings;
use base qw/DBIx::Class::Storage::DBI/;
use mro 'c3';
use Try::Tiny;
use namespace::clean;
__PACKAGE__->datetime_parser_type('DateTime::Format::DB2');
__PACKAGE__->sql_quote_char ('"');
# lazy-default kind of thing
sub sql_name_sep {
my $self = shift;
my $v = $self->next::method(@_);
if (! defined $v and ! @_) {
$v = $self->next::method($self->_dbh_get_info('SQL_QUALIFIER_NAME_SEPARATOR') || '.');
}
return $v;
}
sub sql_limit_dialect {
my $self = shift;
my $v = $self->next::method(@_);
if (! defined $v and ! @_) {
$v = $self->next::method(
($self->_server_info->{normalized_dbms_version}||0) >= 5.004
? 'RowNumberOver'
: 'FetchFirst'
);
}
return $v;
}
sub _dbh_last_insert_id {
my ($self, $dbh, $source, $col) = @_;
my $name_sep = $self->sql_name_sep;
my $sth = $dbh->prepare_cached(
# An older equivalent of 'VALUES(IDENTITY_VAL_LOCAL())', for compat
# with ancient DB2 versions. Should work on modern DB2's as well:
# http://publib.boulder.ibm.com/infocenter/db2luw/v8/topic/com.ibm.db2.udb.doc/admin/r0002369.htm?resultof=%22%73%79%73%64%75%6d%6d%79%31%22%20
"SELECT IDENTITY_VAL_LOCAL() FROM sysibm${name_sep}sysdummy1",
{},
3
);
$sth->execute();
my @res = $sth->fetchrow_array();
return @res ? $res[0] : undef;
}
=head1 NAME
DBIx::Class::Storage::DBI::DB2 - IBM DB2 support for DBIx::Class
=head1 DESCRIPTION
This class implements autoincrements for DB2, sets the limit dialect to
RowNumberOver over FetchFirst depending on the availability of support for
RowNumberOver, queries the server name_sep from L<DBI> and sets the L<DateTime>
parser to L<DateTime::Format::DB2>.
=head1 FURTHER QUESTIONS?
Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
=head1 COPYRIGHT AND LICENSE
This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
redistribute it and/or modify it under the same terms as the
L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.
=cut
1;
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