ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry the preferred method according to their re‐ quirements. 2.1.2 Limitations Currently only Java language is supported. 2.1.3 Requirements The development environment requires Java JRE 8 or later. 2

distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐Native. As the cornerstone of enterprises, the relational database has a huge market databases. The applications and databases that use Database Mesh to visit databases will form a large grid system, where they just need to be put into the right positions accordingly. They are all governed the preferred method according to their re‐ quirements. 2.1.2 Limitations Currently only Java language is supported. 2.1.3 Requirements The development environment requires Java JRE 8 or later. 2

ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry the preferred method according to their re‐ quirements. 2.1.2 Limitations Currently only Java language is supported. 2.1.3 Requirements The development environment requires Java JRE 8 or later. 2

distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐Native. As the cornerstone of enterprises, the relational database has a huge market databases. The applications and databases that use Database Mesh to visit databases will form a large grid system, where they just need to be put into the right positions accordingly. They are all governed distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐ Native. 3.1.1 ShardingSphere-JDBC As the first product and the predecessor of Apache

ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry choose the preferred method according to their requirements. 7.1.2 Limitations Currently only Java language is supported. 7.1.3 Requirements The development environment requires Java JRE 8 or later. 7

ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry ShardingSphere-Proxy Database Any MySQL/PostgreSQL Connections Count Cost More Less Heterogeneous language Java Only Any Performance Low loss Relatively High loss Decentralization Yes No Static entry choose the preferred method according to their requirements. 7.1.2 Limitations Currently only Java language is supported. 7.1.3 Requirements The development environment requires Java JRE 8 or later. 7

distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐Native. As the cornerstone of enterprises, the relational database has a huge market databases. The applications and databases that use Database Mesh to visit databases will form a large grid system, where they just need to be put into the right positions accordingly. They are all governed distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud‐ Native. 3.1.1 ShardingSphere-JDBC As the first product and the predecessor of Apache

distributed governance, applicable in a variety of situa‐ tions such as Java isomorphism, heterogeneous language and cloud native. Apache ShardingSphere aiming at reasonably making full use of the computation the database. The application and database that use Database Mesh to visit database will form a large grid system, where they just need to be put into the right position accordingly. They are all gov‐ exists in all sharding database sources. It is suitable for scenarios where the amount of data is not large and does not require any sharding operations. Sharding Sharding Key The database field used in

frameworks such as Hibernate typically uses a custom query language i.e. the Hibernate Query Language HQL or Enterprise JavaBeans Query Language EJBQL. MYBATIS Design Features MyBatis comes with the following can to facilitate hyper-fast development. Portability − MyBatis can be implemented for nearly any language or platform such as Java, Ruby, and C# for Microsoft .NET. Independent Interfaces − MyBatis provides join fetching, caching, runtime code generation, and inheritance. MyBatis uses JAVA programming language while developing database oriented application. Before proceeding further, make sure that you understand

功能特色 • RDL（Resource & Rule Definition Language）负责资源 和规则的创建、修改和删除； • RQL（Resource & Rule Query Language）负责资源和规 则的查询和展现； • RAL（Resource & Rule Administration Language）负责 Hint、事务类型切换、分片执行计划查询等增量功能的操作。