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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.
There are also packages (in Python, Ruby, R, etc.) that allow you to query databases without directly writing the SQL. I see that there's a package called SxQL that does this in lisp, but I haven't seen it used in Emacs.
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