Hi,
This is a CAD database. Recording and Statistics service database. Here is a description from the guide
http://www.cisco.com/en/US/docs/voice_ip_comm/cust_contact/contact_center/crs/express_7_0/installation/guide/cad66ig-cm.pdf
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The Recording and Statistics service maintains a 1-day history of agent and team statistics, such as average time an agent is in a particular agent state, last login time, number of calls an agent has received. It maintains a rolling 7-day history of recordings (unless they are saved, in which case they are saved for 30 days).
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Hope this answers your question.
Regards,
Christos