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Category Archives: NoSQL
Neo4J: Loading rocket data in a graph database
When I first learned about graph databases, like Neo4J, I didn’t get it. That’s how I always start with new technology: not getting at all why people getting so enthusiastic about them. Then I read “Seven Databases in Seven Weeks, … Continue reading
Posted in Active Learning, Howto, NoSQL
Tagged Cypher, graph database, Jonathan's Space Page, Neo4J, Seven Databases in Seven Weeks
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Making a Hertzsprung-Russell diagram from Gaia DR2 data with Elasticsearch
Elasticsearch was one of the open source products on my list to try out, ever since I got rejected for a couple of assignments as a consultant last year. Apparently it’s a popular product. But why do you need a … Continue reading
Posted in NoSQL
Tagged 2001 A Space Odyssey, ElasticSearch, Frank Kane, Gaia, Hertzsprung-Russell diagram, Kibana, Logstash, Udemy, Vega
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Playing with asteroids data in MongoDB
If there is one thing I learned when becoming a data engineer, it’s that having just Hadoop expertise is probably not enough. For starters: what it means to be a data engineer is not exactly sharply defined. Some say data … Continue reading