Splunk for non-streaming data (structured)

Hello, I will be using Splunk for non-streaming information. The reason I am using Splunk is a) my company already has licenses and b) the power of transforming data into visualizations. I am using a Postgres database. I expect to update Splunk with new data 1-3 times a day, as the information does not change frequently. The biggest goal is visualization of employee timesheets and project man hours for executive decisions on ROI and financial considerations. I am looking for recommended blogs/articles/documents/books on using Splunk for business analysis, but without the focus on streaming data. Does anyone have any good resources, or can share their own insights?