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IvorySQL

An open source PostgreSQL with 100% Oracle compatibility

100% Oracle compatibilityApache 2.0 open sourceBuilt on PostgreSQL kernel

IvorySQL is an advanced open source Oracle-compatible PostgreSQL distribution built for complete compatibility and smooth replacement of the latest PostgreSQL. The compatible_db switch lets you move between Oracle and PostgreSQL modes, while PL/iSQL supports Oracle PL/SQL syntax and package-style development.

Latest VersionIvorySQL 5.1

Core Advantages

From kernel compatibility to ecosystem integration, built for production workloads.

Open Source Core

Apache 2.0 licensed with no vendor lock-in, transparent code, and easy customization.

Deep Oracle Compatibility

PL/iSQL and the ivorysql_ora extension provide strong PL/SQL compatibility for Oracle migrations.

Full-Platform Compatibility

Compatible with mainstream hardware and operating systems, including domestic chip architectures.

Cloud-Native Support

Container-ready support across Docker Compose/Swarm, K8S Operator, and cloud platforms.

Enterprise Support

Backed by HighGo and validated in production-grade enterprise deployments.

Ecosystem Integration

Inherits PostgreSQL SQL completeness, reliability, and ecosystem extensibility.

Broad Scenario Coverage

Covers enterprise workloads, LBS, data warehousing, web/app development, and migrations.

Easy to Use

Reduces management overhead with developer-friendly interfaces and third-party integration.

Application Scenarios

Supports mainstream database workloads from OLTP systems to analytical platforms.

Enterprise Databases

Fits ERP, transaction systems, and finance systems requiring high availability and complex logic.

LBS Applications

Supports geospatial workloads such as O2O and game maps through PostGIS.

Data Warehouse / Big Data

Build analytical platforms with rich data types and robust processing capabilities.

Websites / App Development

Improves website and application efficiency with high-performance database capabilities.

Database Migration

Enables direct migration paths from Oracle databases to IvorySQL.

IvorySQL Architecture

IvorySQL architecture diagram

IvorySQL Ecosystem Panorama

IvorySQL ecosystem panorama

Compatibility Certificates

See more compatibility certificates and ecosystem partnerships on the partners page.

Compatibility Certificates 1
Compatibility Certificates 2
Compatibility Certificates 3
Compatibility Certificates 4
Compatibility Certificates 5
Compatibility Certificates 1
Compatibility Certificates 2
Compatibility Certificates 3
Compatibility Certificates 4
Compatibility Certificates 5