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How to add column to view for each record in JOIN table?
Posted by: Tobias Krais ()
Date: July 16, 2011 04:18PM

Hi together,

I'm not a MySQL hero, thus I need some help. Here are my three tables:
-----%<-----
CREATE TABLE config` (
`id` int(10) unsigned NOT NULL auto_increment,
`name` varchar(50) collate utf8_general_ci default NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci AUTO_INCREMENT=1;

CREATE TABLE property` (
`id` int(10) unsigned NOT NULL auto_increment,
`objekttitel` varchar(255) collate utf8_general_ci default NULL,
`objektnummer_intern` varchar(255) collate utf8_general_ci default NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci AUTO_INCREMENT=1;

CREATE TABLE exports` (
`id` int(10) unsigned NOT NULL auto_increment,
`property_id` int(10) unsigned NOT NULL,
`export_config_id` int(10) unsigned NOT NULL,
`export_timestamp` timestamp default 0,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci AUTO_INCREMENT=1;
-----%<-----
Where table exports is an n:n table for property:config. If a record in table exports is available, it means this property will be exported to the given config.

What I want to do is a JOIN like this:
-----%<-----
SELECT property.id, property.objektnummer_intern, property.objekttitel FROM property LEFT JOIN exports ON (property.id = exports.property_id)
-----%<-----
And now I want to add one column for each row in table config. This column should show 'online' if a record for the property and the config is available. If none, it should show offline.

After googleing around for some hours I found this forum and hope to find help :-). Is it possible, to create this in one view?

Greetings,

Tobias

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Subject Written By Posted
How to add column to view for each record in JOIN table? Tobias Krais 07/16/2011 04:18PM
Re: How to add column to view for each record in JOIN table? Peter Brawley 08/16/2011 07:34AM


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