Database Selection

• https://www.youtube.com/watch?v=6GebEqt6Ynk
• https://dba.stackexchange.com/questions/314586/do-the-use-cases-for-apache-cassandra-mostly-relate-to-its-speed-and-scalability

SQL Databases

• Relational DB
• Slower due to Tx guarantees
• If correctness is more important than speed
• How much throughput????
• Examples:
  • Banking
  • Healthcare
  • Job Scheduling

TimeSeries

• TimeScaleDB, Prometheus
• Elasticsearch also supports Time series but it is a document-based
• Data ordered by Timestamp
• Examples
  • Sensor Data
  • Logging, Metrics