---
title: High Volume Database Replication | Hevo Data
description: Replicate databases like PostgreSQL and Oracle to destinations like Snowflake and BigQuery without impacting performance. Use log-based or SQL-based CDC for precise, real-time data movement. Get started for free.
canonical_url: https://hevodata.com/pipeline/database-replication/
content_type: page
word_count: 358
source: https://hevodata.com/pipeline/database-replication.md
---

# High Volume Database Replication | Hevo Data

Hevo replicates high-volume databases like PostgreSQL and Oracle into destinations like Snowflake and BigQuery using log-based or SQL-based change data capture (CDC), moving data in near real time without impacting source database performance.

## Key facts

- Used by 2,000+ companies worldwide.
- Data never flows out of the customer's network; security options include SSL, PrivateLink, and Reverse SSH.
- Infrastructure scales automatically to match data load.
- Failed loads are automatically fixed and retried.

## Flexible replication modes

- **Log-based replication:** inserts, updates, and deletes captured directly from database logs, without interfering with the source system.
- **Event and timestamp-based CDC:** replication driven by a trigger-based incrementing column, a timestamp, or both.
- **Replicate a subset of data:** tailored datasets loaded with simple SQL queries, so only the needed data reaches the warehouse.

## Staying performant at scale

- **Automatic schema drift evolution:** new columns, tables, and data type changes are detected and handled without manual intervention.
- **Handles data scale with ease:** millions of records move efficiently, with infrastructure that scales automatically to match data load.
- **Intelligent failure recovery:** failed data loads are automatically fixed and retried, keeping the warehouse consistent.

## Built for scale, proven in production

- **Unparalleled security:** data never leaves the customer's network, with SSL, PrivateLink, Reverse SSH, and other security options.
- **Granular observability:** pipeline-level auto-scaling handles data surges while maintaining consistent performance during peak workloads.
- **24x7 customer support:** an engineer is available anytime, for simple questions or active troubleshooting.
- **Platform extensibility:** pipelines can be deployed, monitored, and managed programmatically through Hevo's API or direct Terraform integration.

## What customers say

- **Richard Heim, Director of Data Architecture, Favor:** "We have been impressed with Hevo's responsiveness. Their engineers were readily available to support database changes, a level of access we would not expect elsewhere."
- **Nikhil Bhatnagar, Software Engineer, JumboTail:** "After a two week trial, Hevo proved ideal for our use case, offering more value than alternatives and enabling migration of pipelines from Alooma seamlessly."
- **Prudhvi Vasa, Head of Data, Postman:** "Hevo offers broad coverage with reliable, up to date integrations. The tool is accessible, and the responsive team consistently resolves questions and issues efficiently."

Full case studies: https://hevodata.com/customers/

## Pricing

Hevo uses transparent, usage-based pricing with no credit card required to start.

## FAQ

### How does Hevo replicate databases without impacting performance?

Through log-based CDC, which captures inserts, updates, and deletes directly from database logs without interfering with the source system, as an alternative to event- or timestamp-based CDC.

### Can I replicate only part of a database instead of the whole thing?

Yes. A subset of data can be loaded using simple SQL queries, so only the needed tables or rows reach the warehouse.

### How does Hevo handle schema changes during database replication?

Automatically. New columns, tables, and data type changes are detected and handled without manual intervention, as part of automatic schema drift evolution.

### Does customer data leave the network during replication?

No. Data never flows out of the customer's network, with SSL, PrivateLink, and Reverse SSH available for additional security.

### Can pipelines be managed programmatically?

Yes, through Hevo's API or direct Terraform integration, for deploying, monitoring, and managing pipelines.