Shrink sharepoint database

A Sharepoint Database can become big and have unused spaces. To shrink database go to CA-> Health Analyzer: http://takana:1337/Lists/HealthReports/AllItems.aspx See if there is a list item about unused space in db under the Availability. Click on Repair Automatically in the opened Modal Dialog:  

• CA
• database
• db
• monitoring
• Performance
• sharepoint