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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Look for databases called 'Northwind' and 'AP'. Additionally, if you like sports, the Lahman baseball DB is a very easy one to install and use to figure out functions (link: https://github.com/WebucatorTraining/lahman-baseball-mysql )
NOTE:
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