Help:$smwgDefaultStore

is a configuration parameter that is used to set the storage backend for the semantic data either SQL, SPARQL or Elasticsearch. This configuration parameter was introduced in.

From to  the default store was   (relational database) which received legacy support in  and was dropped with.

Default setting
This means that a relational database is being used as a data backend/store for Semantic MediaWiki which is suitable for most standard environments.

Available options

 * − Sets a relational database as a data backend/store, i.e. MySQL, SQLite or PostgreSQL


 * − Sets a sparql database as the data backend/store, e.g. Blazegraph, Sesame, Fuseki etc.


 * − Sets an Elasticsearch database as the data backend/store

Changing the default setting
To modify the setting to this configuration parameter, add one of the following lines to your "LocalSettings.php" file after the  call:


 * Change to a sparql database for data storage


 * Change to a Elasticsearch database for data storage