The [Configure CMS](🔗) topic describes the syntax used in the description of the configuration elements. \<episerver.dataStore\> matches the classes in `EPiServer.Data.Configuration`.
## \<episerver.dataStore\>
### \<episerver.dataStore\> element attribute
The values for the episerver.dataStore section have defaults **defined in code** equivalent to the following:
If you want to change these defaults, specify the overridden values. The configuration specified in the file is merged with the default in code. As with the Microsoft standard, providers added in the providers element are merged with the defaults. To completely replace the defaults, add the \<clear /> element as the first element in the providers collection.
### \<cache\> element attributes
### \<cache\> and \<providers\> and \<add\> element attributes
The `httpCacheProvider` (`EPiServer.Data.Cache.HttpRuntimeCacheProvider`) and `nullCacheProvider` (`EPiServer.Data.Cache.NullCacheProvider`) providers are automatically added to the providers collection. To remove one or more of these, use the standard \<remove\> and \<clear\> elements.
### \<providers\> and \<add\> element attributes
The `EPiServerSQLServerDataStoreProvider` (`EPiServer.Data.Dynamic.Providers.SqlServerDataStoreProvider`) provider is automatically added to the providers collection. To remove one or more of these, use the standard \<remove\> and \<clear\> elements.