ResourcePool::Command::DBI::SelectRow - A DBI command to execute one-row select
statements.
use ResourcePool::Command::DBI::SelectRow;
# simple usage
my $cmd = ResourcePool::Command::DBI::SelectRow->new();
eval {
my @row = $pool->execute($cmd
, 'select id, name, value from test where id = ?'
, 5
);
# @row holds an array holding three values corresponding to the
# selected fields
};
This command can be used to execute one-row select statements in a DBI database
using the ResourcePool command execution environment.
In order to understand this Class, and more importantly this
document, you need to know a few terms I use in this document, if you are
new to this class you should read the TERMS sections of
ResourcePool::Command::DBI::Executefirst.
The use of this class if safe for all databases and drivers. If
the select does not return any rows, the array returned by the
execute() method will be empty. If the statement returns more than
one record, only the first is fetched and returned.
Instantiates a new Select object. The parameters are identical to those of the
ResourcePool::Command::DBI::Execute class.
Similar to the same named method of the ResourcePool::Command::DBI::Execute
class. The only difference is that it returns an array holding the columns of
the selected row.
- Documentation
- Year, we really need documentation.
DBI, ResourcePool, ResourcePool::Factory
Copyright (C) 2001-2004 by Markus Winand <mws@fatalmind.com>
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.