
1. ClickHouseTop pick
Best for: Engineering teams building real-time dashboards, observability or analytics over billions of rows
76.8
score / 100
Why switch from Exasol
Open-source columnar database that's free to self-host and fast for analytical queries.
Pros
- Very fast aggregations over large tables, suited to live dashboards
- Apache 2.0 open source, so it can be self-hosted at no licence cost
- Strong compression keeps storage costs down
- Managed cloud option on AWS, Google Cloud and Azure
Cons
- Schema and table-engine choices need care to get good performance
- Updates, deletes and large joins are weaker than in general-purpose warehouses
- Self-hosting a cluster takes real operational work
How this score is calculated
0 counted reviews, 0 up and 0 down votes. Full formula
Verified facts
5 of 5 verified- Pricing model
- Compute and storage metered separately
- Checked Nov 8, 2026clickhouse.com(opens source in a new tab)



