Semantic MediaWiki/data/smw subs2: Difference between revisions
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m moved smw subs2 to Semantic MediaWiki/data/smw subs2: forgot to prefix with / |
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==About== | ==About== | ||
* '''Version''': 1.7 | * '''Version''': 1.7 | ||
* '''Documentation status''': unofficial; confirmed only by testing | |||
* '''Purpose''': seems to be a mapping of categories and sub-categories | |||
==SQL== | ==SQL== | ||
<mysql>CREATE TABLE `smw_subs2` ( | <mysql>CREATE TABLE `smw_subs2` ( | ||
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KEY `o_id` (`o_id`) | KEY `o_id` (`o_id`) | ||
) ENGINE=InnoDB DEFAULT CHARSET=binary;</mysql> | ) ENGINE=InnoDB DEFAULT CHARSET=binary;</mysql> | ||
==Example== | |||
<mysql> | |||
SELECT s_id, o_id | |||
, CAST(s.smw_title AS char) AS s_title | |||
, CAST(o.smw_title AS char) AS o_title | |||
FROM | |||
(smw_subs2 AS x | |||
LEFT JOIN smw_ids AS s ON x.s_id=s.smw_id) | |||
LEFT JOIN smw_ids AS o ON x.o_id=o.smw_id; | |||
</mysql> | |||
Latest revision as of 19:32, 17 December 2012
About
- Version: 1.7
- Documentation status: unofficial; confirmed only by testing
- Purpose: seems to be a mapping of categories and sub-categories
SQL
<mysql>CREATE TABLE `smw_subs2` (
`s_id` int(8) unsigned NOT NULL, `o_id` int(8) unsigned DEFAULT NULL, KEY `s_id` (`s_id`), KEY `o_id` (`o_id`)
) ENGINE=InnoDB DEFAULT CHARSET=binary;</mysql>
Example
<mysql> SELECT s_id, o_id
, CAST(s.smw_title AS char) AS s_title , CAST(o.smw_title AS char) AS o_title FROM (smw_subs2 AS x LEFT JOIN smw_ids AS s ON x.s_id=s.smw_id) LEFT JOIN smw_ids AS o ON x.o_id=o.smw_id;
</mysql>
