Sharepoint 2013 databases

SharePoint 2013 has lot of improvements over SharePoint 2010.SharePoint 2013 has the following database.

The table illustrate the databases used in SharePoint 2013

Database	Description	Application Classification or Apps used By
App License	Stores the App licenses and permissions downloaded from the global marketplace.	App Management
Configuration Database	Contains data about all SharePoint databases, all Internet Information Services (IIS) websites or Web applications, trusted solutions, Web Part Packages, site templates, and Web application and farm settings specifi c to SharePoint 2013 Preview, such as default quota and blocked fi le types.	Core Databases
Central Administration Content	Content database for the Central Administration site.	Central Administration Content
Content Databases	Stores all site content, including site documents or fi les in document libraries, list data, web part properties, audit logs, sandboxed solutions, and usernames and rights. All the data for a specific site resides in one content database. Content databases can contain more than one site collection. Also stores data for Office Web Applications, if in use.
Machine Translation Services	Stores information about pending and completed batch document translations with file extensions that are enabled.	Machine Translation Services
Managed Metadata Service	Stores managed meta data and syndicated content types.	Managed Metadata Service
PerformancePoint	Stores temporary objects and persisted user comments and settings.
PowerPivot	Stores data refresh schedules and PowerPivot usage data copied from the central usage data collection database. PowerPivot for SharePoint 2013 requires SQL Server 2012 Analysis Services, Business Intelligence, or Enterprise Edition.
Project Server	Stores all the data for a single Project Web App (PWA), along with the following: All Project and Portfolio Management (PPM) data Time tracking and Timesheet data Aggregated SharePoint project site data
Search	Hosts the Search application confi guration and access control list (ACL) for the crawl component.	Search Administration
Secure Store	Stores and maps credentials such as account names and passwords.	Secure Store
Subscription Settings Service	Stores features and settings information for hosted customers. This database is not created by default but must be created by using Windows PowerShell or SQL Server.
State Service	Stores temporary state information for InfoPath Forms Services, Exchange, the chart web part, and Visio Services.
Usage and Health	Stores health monitoring and usage data temporarily, and also used for reporting and diagnostics. The Usage database is the only SharePoint database that can be queried directly and have schema modifi ed by either Microsoft or third-party applications.	Usage and Health Database
User Profi les		Stores and manages users and their social information.
Word Conversion	Stores information about pending and completed document conversions.
Word Automation	Stores information about pending and completed document conversions.