As the business continues to develop, the volume of data and concurrency reach a certain level. Traditional standalone databases may experience performance, scalability, and availability issues. In response to this, the industry has proposed NoSQL solutions to address these problems through data sharding and horizontal scaling. However, NoSQL databases usually do not support transactions and SQL.

Apache ShardingSphere is a distributed database ecosystem that provides data migration solutions to facilitate the smooth transition of traditional single-node databases to ShardingSphere. It allows the conversion of standalone databases into distributed databases and enhances the original database through capabilities such as data sharding, elastic scaling, and encryption. 
In this blog post, we will delve into ShardingSphere’s data migration function and provide you with a comprehensive, step-by-step guide on how to build a distributed database. Assuming little prior knowledge, we’ll explore the intricacies of data migration, allowing you to leverage ShardingSphere’s power for seamless database transitions.

Data Migration With ShardingSphere: A Closer Look

Let’s now explore one of the core features of ShardingSphere — data migration — and gain insights into its functionality and benefits. Whether it is for database upgrades or backups, you can directly use the built-in data migration functionality in ShardingSphere-Proxy. There is no need to introduce additional modules so that the project’s development and maintenance process can be simplified. In this section, we’ll focus on using MySQL as the target database and provide a step-by-step demonstration of the entire migration process.

Scope of Data Migration Support

Currently, ShardingSphere data migration supports the following database types:

MySQL
PostgreSQL
openGauss

Furthermore, ShardingSphere facilitates data migration across homogeneous and heterogeneous databases that support the aforementioned protocols. This flexibility allows businesses to seamlessly migrate data between different database systems, regardless of their underlying architecture.

Supported Database Versions and Configuration Examples

To ensure compatibility, ShardingSphere provides data migration support for various database versions. The table below showcases the database versions and offers configuration examples for a smooth migration:

Database

Supported Version

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