Databases Reference
In-Depth Information
Adding a third table to our model
To get a more complete schema, we will now add another table, country , to our
database. The following block of code displays the contents of its export file:
CREATE TABLE IF NOT EXISTS `country` (
`code` char(2) NOT NULL,
`description` varchar(50) NOT NULL,
PRIMARY KEY (`code`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO `country` (`code`, `description`) VALUES
('ca', 'Canada'),
('uk', 'United Kingdom');
We will now link this table to the author table. First, in the Relation view for the
country table, we specify the column that we want to display, and then click on Save .
We then add a country_code column (same type and size as that of the code column
in the country table) to the author table, and in the Relation view , we link it to the
newly-created country table.
We must remember to click on Save for the relation
to be recorded.
 
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