Difference between revisions of "Semantic MediaWiki/data/smw spec2"
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m (moved smw spec2 to Semantic MediaWiki/data/smw spec2: forgot to prefix with /) |
(a small advance in understanding) |
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==About== | ==About== | ||
* '''Version''': 1.7 | * '''Version''': 1.7 | ||
| + | * '''Documentation status''': unofficial; confirmed only by testing | ||
| + | * '''Purpose''': URLs for <abbr title="Semantic Wiki Vocabulary and Terminology" href="http://semantic-mediawiki.org/swivt/">SWiVT</abbr> definitions of built-in types | ||
| + | ** Currently, all URLs are like "http://semantic-mediawiki.org/swivt/1.0#_''X''", where ''X'' is "str", "txt", "dat", or "cod" | ||
==SQL== | ==SQL== | ||
<mysql>CREATE TABLE `smw_spec2` ( | <mysql>CREATE TABLE `smw_spec2` ( | ||
| Line 10: | Line 13: | ||
KEY `s_id_2` (`s_id`,`p_id`) | KEY `s_id_2` (`s_id`,`p_id`) | ||
) ENGINE=InnoDB DEFAULT CHARSET=binary;</mysql> | ) ENGINE=InnoDB DEFAULT CHARSET=binary;</mysql> | ||
| + | ==Example== | ||
| + | <mysql> | ||
| + | SELECT s_id, p_id | ||
| + | , CAST(s.smw_title AS char) AS s_title | ||
| + | , CAST(p.smw_title AS char) AS p_title | ||
| + | , CAST(value_string AS char) AS value | ||
| + | FROM | ||
| + | (smw_spec2 AS c | ||
| + | LEFT JOIN smw_ids AS s ON c.s_id=s.smw_id) | ||
| + | LEFT JOIN smw_ids AS p ON c.p_id=p.smw_id; | ||
| + | </mysql> | ||
Latest revision as of 16:18, 17 December 2012
About
- Version: 1.7
- Documentation status: unofficial; confirmed only by testing
- Purpose: URLs for SWiVT definitions of built-in types
- Currently, all URLs are like "http://semantic-mediawiki.org/swivt/1.0#_X", where X is "str", "txt", "dat", or "cod"
SQL
<mysql>CREATE TABLE `smw_spec2` (
`s_id` int(8) unsigned NOT NULL, `p_id` int(8) unsigned NOT NULL, `value_string` varbinary(255) DEFAULT NULL, KEY `s_id` (`s_id`), KEY `p_id` (`p_id`), KEY `s_id_2` (`s_id`,`p_id`)
) ENGINE=InnoDB DEFAULT CHARSET=binary;</mysql>
Example
<mysql> SELECT s_id, p_id
, CAST(s.smw_title AS char) AS s_title , CAST(p.smw_title AS char) AS p_title , CAST(value_string AS char) AS value FROM (smw_spec2 AS c LEFT JOIN smw_ids AS s ON c.s_id=s.smw_id) LEFT JOIN smw_ids AS p ON c.p_id=p.smw_id;
</mysql>