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== Semantic Queries ==
The power of Semantic MediaWiki is based on queries towards properties or categories.

References:
*[http://semantic-mediawiki.org/wiki/Help:Semantic_search Help:Semantic search]
*[http://semantic-mediawiki.org/wiki/Help:Inline_queries Help:Inline queries]

Pages in this wiki with query examples:
*
*

=== A sample query ===
According to the sample "E-Mail" property from above, this is an example on how to query a list of pages containing such an "E-Mail" property:

<pre><nowiki>
{{#ask:[[E-Mail::+]]
|?E-Mail
|format=table
|mainlabel=Page
|limit=10
}}
</nowiki></pre>

Result:
{{#ask:[[E-Mail::+]]
|?E-Mail
|format=table
|mainlabel=Page
|limit=10
}}

=== Count ===
Count the number of queried items:
<nowiki>{{#ask:[[Category:Dictionary]]|format=count}}</nowiki>
There are currently '''{{#ask:[[Category:Dictionary]]|format=count}}''' items in the [[:Category:Dictionary]].

=== Page result column ===
If you want to move the result wiki page to the right you can use "?=Wiki Page" and "mainlabel=-":

Example:
<pre><nowiki>
{{#ask:[[-Has subobject::+]][[PropAbbrDictDefinition::+]]
|?PropAbbrDictDefinition
|?PropAbbrDictContext
|?=Wiki Page
|format=table
|mainlabel=-
|limit=5
}}
</nowiki></pre>
{{#ask:[[-Has subobject::+]][[PropAbbrDictDefinition::+]]
|?PropAbbrDictDefinition
|?PropAbbrDictContext
|?=Wiki Page
|format=table
|mainlabel=-
|limit=5
}}

=== Formatting Output using Templates ===
In order to format all aspects of the query output, you can assign templates to the query like
<pre><nowiki>
{{ #ask: [[Category:Dictionary]]
|?Heading 1
|?Heading 2
|?Heading 3
|format=template
|template=<name>
|introtemplate=<name>
|outrotemplate=<name>
}}
</nowiki></pre>

References:
*[http://semantic-mediawiki.org/wiki/Help:Template_format Help:Template format]

==== Tips and Tricks ====
*Use ''link=none'' if you want to format internal or external links, especially with properties from type URL. Or use "#" for each single field. See also [http://wikimedia.7.n6.nabble.com/creating-replacement-text-for-URL-in-ask-results-table-td591660.html creating-replacement-text-for-URL-in-ask-results-table].
*Use <nowiki><nowiki/></nowiki> element in order to avoid line breaks if a property is not set. Useful in templates. Example:
<nowiki>{{#if: {{{DefinitionGlobal|}}}|[[PropGlossaryDefinitionGlobal::{{{DefinitionGlobal|}}}]]}}<nowiki/></nowiki>

==== Examples ====
See following examples about using such formatting templates.

=== Subqueries ===
See [[/Subqueries|Subqueries]].

=== Query for recent changes ===
There is a built-in property that can be used to query for modification date. See [[Help:Semantic_MediaWiki/Queries/Modification_date|Modification date]].

Hilfe:Semantic MediaWiki - Versionsgeschichte

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