Here's your table with the <br> tags removed for a cleaner presentation:
| Engine Type | Examples | Further Reading |
| RDBMS | Oracle, MySQL, Microsoft SQL Server, PostgreSQL, IBM Db2 | |
| Document DB | MongoDB, Amazon DynamoDB, Databricks, Microsoft Azure Cosmos DB, Couchbase, Cassandra, Cosmos DB | |
| Time Series | InfluxDB, Kdb+, Graphite, Prometheus, TimescaleDB | Stocks prices, logs, event management, time-based roll-ups |
| Search Engines | Elasticsearch, Splunk, Solr, OpenSearch, MarkLogic | Reverse indices |
| Graph DBs | Neo4j, Microsoft Azure Cosmos DB, ArangoDB, Virtuoso, OrientDB | Tuples, knowledge management, relationships, object predicate model, EAV |
| Spatial DBs | PostGIS, Aerospike, SpatiaLite |