SQL Server + ClickHouse
SQL Server is a relational database management system developed by Microsoft, used to store and manage large volumes of data. ClickHouse, on the other hand, is a high-performance, column-oriented database management system tailored for OLAP and Big Data analytics, providing robust storage and analysis capabilities at scale.
With Erathos, you can integrate SQL Server data into ClickHouse in just a few minutes. Our platform handles the entire data pipeline process to your analytical environment, allowing you to cross-reference this data with other sources in your Data Warehouse. This way, your time is focused on what actually drives value — extracting valuable insights and making more data-driven decisions.
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Connect your source
Authenticate your account and you're done. 100+ ready-made connectors, no code required.
Configure the sync
Pick the tables, the schedule and the update type: batch, cursor-based incremental or CDC.
Choose your destination
Load into BigQuery, Redshift, Databricks, PostgreSQL, ClickHouse, Amazon S3 and more.
What SQL Server data does Erathos sync to ClickHouse?
The integration automatically syncs key SQL Server objects:
- Selected tables — incremental replication of any configured table
- Schema drift — new columns are automatically detected and added to the destination
- Primary keys and timestamps — used for efficient incremental syncs
- Historical data — full initial load followed by incremental updates
Why sync SQL Server to ClickHouse?
In ClickHouse, you can run OLAP queries on your SQL Server data in milliseconds, making it ideal for high-concurrency dashboards and high-volume time-series data.
How it works
Erathos connects to SQL Server via its official API and syncs your data incrementally — only new or updated records are processed in each run, keeping pipelines fast and ClickHouse costs predictable. You choose the sync frequency (from every 5 minutes to daily), the objects to sync, and the destination dataset. Every run is logged with full observability: runtime, rows processed, errors with context, and instant alerts via Slack or email if anything goes wrong.
Centralizing SQL Server data in ClickHouse has never been easier
Erathos is a data ingestion platform for teams that need to replicate operational databases for analytics. With the SQL Server connector, you can incrementally sync tables and transactional records to ClickHouse — featuring schema drift detection and comprehensive execution logs.
Data in your data warehouse in minutes
Ready-to-use SQL Server connector
Replicate SQL Server tables to ClickHouse with incremental sync and automatic schema drift detection — without breaking pipelines when the schema changes.
Learn moreFull control over your SQL Server pipelines
Configure frequency and sync mode on a per-table basis. Data lands in ClickHouse optimized for OLAP queries, delivering millisecond-level analytics even across millions of rows.
Learn moreEnd-to-end observability
Stop finding out SQL Server failed only after the business team complains. Every run is logged with runtime, processed row counts, and error context. Automatic alerts via Slack, Discord, or email as soon as anything deviates from expected behavior — keeping replication up to date without impacting the transactional database.
Learn moreBuilding data-driven stories
“Every new source implementation, if I had to do it myself, would take about two or three months. With Erathos, it's done in a few hours. I don't need the skills of a data engineer to generate real value from the company's data.”
“Erathos revolutionized data management at WE. By integrating multiple SaaS tools into a single DW, our technical team now focuses on the core business. We implemented dashboards with insights across every area, enriching our organizational culture and improving our decision-making.”
“We used to have a lot of rework, and now we don't. It's more efficient to work this way. If it's not your core business, hire Erathos. Spend your time modeling your own domain, not someone else's.”
“If I didn't have this infrastructure, I'd need three or four people to do what Erathos does today. I was able to generate real value from my data with a much leaner setup than I thought I'd need. That's the core of building a data-driven culture: the team only uses data when they can trust it.”
“Erathos brought a practical turnaround at CCM. We were able to integrate financial systems, CRM, and processes with BigQuery in just a few clicks, with no technical team required. That gave us a reliable data warehouse that powers automations, dashboards, and even our customer service bots.”
“The robustness and efficiency of Erathos's connectors — whether for Meta, Google, RD Station, or ERPs like Bling and Conta Azul — make the whole process much faster and more reliable. The technical documentation is extremely well put together and intuitive, which makes implementation much easier.”
Other paths for your data
Other destinations for SQL Server
Other sources that land in ClickHouse
CRMs, ERPs, ad platforms and databases, all through the same managed pipeline.
Frequently Asked Questions
Erathos is a data ingestion platform built for reliability, transparency, and control. We help data teams connect tools like SQL Server to their data warehouse — with complete observability for every run, zero maintenance, and none of the opacity of traditional market tools.
Erathos uses incremental replication to sync SQL Server tables to Clickhouse. Schema drift is automatically detected — if a column is added or modified in SQL Server, the pipeline adapts without manual intervention.
You can configure the sync frequency from every 5 minutes to daily, at the table level. Erathos uses incremental sync — only new or updated records are processed in each run, keeping your SQL Server pipeline efficient and your ClickHouse costs predictable.
Erathos automatically detects failures and sends alerts to your email, Slack, or Discord with full context — not just "job failed." Smart retries handle transient errors, and every run is logged with runtime, rows processed, and error context so your team can debug in minutes, not hours.
Yes. Every Erathos connector includes a 14-day free trial. Connect SQL Server to Clickhouse and start syncing immediately — no credit card required.