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Fast & Flexible Database Replication

SymmetricDS is open source database replication software that focuses on features and cross platform compatibility.

Cross Platform
Replicate data across different platforms, with compatibility for many databases. Sync from any database to any database in a heterogeneous environment.
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Scale Out Performance
Optimized for performance and scalability, replicate thousands of databases asynchronously in near real time, and span replication across multiple tiers.
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Flexible Configuration
Configure which tables and columns to sync, and in which direction. Subset rows and distribute them across databases. Combine, filter, and transform data.
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SymmetricDS 3.9.17 was released, which includes 10 big fixes and 4 improvements. Here are some highlights:

  • Data type fixes for Oracle RAW, SQL-Server datetime2, and PostgreSQL tsvector
  • Cascade delete added to the table schema replication
  • Estimated counts of tables for faster setup of initial load
  • Fix tables from altering on each startup on PostgreSQL 10
See the change log for more details.

Latest Release

SymmetricDS 3.10.0 is now available! Released on 2019-03-14.

There were 371 downloads this week.

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  • Improving SymmetricDS Performance on Oracle RAC
    Written by Eric Long

    Since the beginning of the SymmetricDS project, change data capture has been supported on Oracle and Oracle RAC. That's because Oracle is a popular database management system, ranking #1 on the DB-Engines Ranking for years. Recently, I helped deploy SymmetricDS in a unique application environment based on Oracle RAC, where it was challenged to keep up with bulk, concurrent changes. By adjusting some new parameters

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