Anforderungen an DB-Systeme
     Multi Version Concurrency Control 1
     Multi Version Concurrency Control 2
     Cassandra Replikation
     Cassandra - TourDelight
     DynamoDB - TourDelight
     Postgres JSON
     GraphQL
     Cypher-Abfragen 1
     Cypher-Abfragen 2
     Graph-Data-Science
     Zeitreihendatenbanken