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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.
i originally learned it from jan Misali altho it does have some mistakes. they're redoing it to be more accurate and up to date, but it's not done yet. there are also two official books by the languages creator. there are other popular courses, but i don't know much about them (i think i've heard good things about this one tho)
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