whichdb
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Huawei GaussDB vs OceanBase

Huawei GaussDB: Huawei's distributed enterprise RDBMS built on openGauss, aimed at replacing Oracle in Chinese finance. OceanBase: Alipay-proven distributed SQL with MySQL (and Oracle, in Enterprise) compatibility, HTAP and vector search.

key differences

  • Licensing: Huawei GaussDB is proprietary (Proprietary commercial license); OceanBase is open source (permissive) (Apache License 2.0 (Community Edition)).
  • OceanBase is built for larger datasets (Multi-PB) than Huawei GaussDB (≤ 1 PB).
  • Only OceanBase has geospatial, change data capture, time travel, online schema changes.

choose huawei-gaussdb for

  • +Core banking replacement of Oracle in China
  • +Government and telecom systems under domestic-technology mandates
  • +Large distributed OLTP on Huawei Cloud

best at · OLTP, HTAP, Vector search

choose oceanbase for

  • +Core banking and payment systems
  • +Oracle-to-distributed-SQL migrations
  • +Consolidating many MySQL instances into one multi-tenant cluster
  • +HTAP reporting on live order data

best at · OLTP, HTAP, Real-time analytics

Huawei GaussDBHuawei's distributed enterprise RDBMS built on openGauss, aimed at replacing Oracle in Chinese finance.
OceanBaseAlipay-proven distributed SQL with MySQL (and Oracle, in Enterprise) compatibility, HTAP and vector search.
overview
Primary model
Relational
Relational
Also supports
Vector
Document, Columnar / OLAP, Vector, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
Huawei
OceanBase (Ant Group)
First release
2019
2010
Latest version
–
5.0.1 CE (Aug 6, 2026)
License
ProprietaryProprietary commercial license
Open source (permissive)Apache License 2.0 (Community Edition)
Free tier
—
✓
popularity
WhichDB Score
6.8
19.4
Rank
#351
#168
GitHub stars
–
10.4K
Stack Overflow questions
–
20
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Massive (Multi-PB)
Horizontal scaling
Native
Native
Multi-region
Read replicas
Active active
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Distributed, Primary replica, Client server
Distributed, Client server, Single node
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
Huawei Cloud
AWS, Google Cloud, Azure, Alibaba Cloud, Huawei Cloud, Tencent Cloud
capabilities
Transactions
✓
✓
Joins
✓
✓
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
✓
✓
Geospatial
—
✓
JSON
✓
✓
Change data capture
—
✓
Triggers
✓
✓
Stored procedures
✓
✓
Materialized views
✓
✓
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
✓
✓
In-memory
—
—
Durable persistence
✓
✓
Compression
✓
✓
Encryption at rest
✓
✓
Role-based access
✓
✓
Time travel
—
✓
Branching
—
—
Online schema changes
—
✓
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
SQL, PL/pgSQL-style procedural SQL
SQL, PL/SQL (Enterprise Oracle mode)
Client languages
Java, C, Python, Go
Java, Python, Go, C, JavaScript, C#
Best for
OLTP, HTAP, Vector search
OLTP, HTAP, Real-time analytics, Vector search
Add more to this comparisonNot sure either fits? Try smart match

Huawei GaussDB vs OceanBase: FAQ

What is the difference between Huawei GaussDB and OceanBase?

Huawei GaussDB: Huawei's distributed enterprise RDBMS built on openGauss, aimed at replacing Oracle in Chinese finance. OceanBase: Alipay-proven distributed SQL with MySQL (and Oracle, in Enterprise) compatibility, HTAP and vector search. Licensing: Huawei GaussDB is proprietary (Proprietary commercial license); OceanBase is open source (permissive) (Apache License 2.0 (Community Edition)). OceanBase is built for larger datasets (Multi-PB) than Huawei GaussDB (≤ 1 PB). Only OceanBase has geospatial, change data capture, time travel, online schema changes.

When should I choose Huawei GaussDB over OceanBase?

Choose Huawei GaussDB for core banking replacement of Oracle in China; government and telecom systems under domestic-technology mandates; and large distributed OLTP on Huawei Cloud. Choose OceanBase for core banking and payment systems; oracle-to-distributed-SQL migrations; and consolidating many MySQL instances into one multi-tenant cluster.

Is Huawei GaussDB or OceanBase more popular?

OceanBase ranks #168 on the WhichDB Score (19.4/100) and Huawei GaussDB ranks #351 (6.8/100). Popularity is not fit: check the requirements that matter for your project.

Are Huawei GaussDB and OceanBase open source?

No. Huawei GaussDB is proprietary, closed-source software. Yes. OceanBase is open source. License: Apache License 2.0 (Community Edition).