Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 L3 Ecosystem Layer . . multi‐model databases. It focuses on how to reuse existing databases and their re‐ spective upper layer, rather than creating a new database. The concepts at the core of the project are Link, Enhance and ShardingSphere‐JDBC defines itself as a lightweight Java framework that provides extra services at the Java JDBC layer. With the client end connecting directly to the database, it provides services in the form of a jar

Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 L3 Ecosystem Layer . . Plus, and aims at building a standard layer and ecosystem above heterogeneous databases. It focuses on how to reuse existing databases and their respective upper layer, rather than creating a new database ShardingSphere‐JDBC defines itself as a lightweight Java framework that provides extra services at the Java JDBC layer. With the client end connecting directly to the database, it provides services in the form of a jar

Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 L3 Ecosystem Layer . . . ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database ShardingSphere‐JDBC is a lightweight Java framework that provides additional services at Java’s JDBC layer. 1 Apache ShardingSphere document, v5.2.0 ShardingSphere-Proxy ShardingSphere‐Proxy is a transparent

Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 L3 Ecosystem Layer . . Plus, and aims at building a standard layer and ecosystem above heterogeneous databases. It focuses on how to reuse existing databases and their respective upper layer, rather than creating a new database ShardingSphere‐JDBC defines itself as a lightweight Java framework that provides extra services at the Java JDBC layer. With the client end connecting directly to the database, it provides services in the form of a jar

Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 L3 Ecosystem Layer . . . ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database ShardingSphere‐JDBC is a lightweight Java framework that provides additional services at Java’s JDBC layer. ShardingSphere-Proxy ShardingSphere‐Proxy is a transparent database proxy, providing a database

. . . . . . . . . . . . . . . 5 2.3.1 L1 Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3.2 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3.3 L3 Ecosystem Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Deployment 7 3.1 Using ShardingSphere‐JDBC . . . . . . . . . . . . . . . . . . ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database

. . . . . . . . . . . . . . . 5 2.3.1 L1 Kernel Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3.2 L2 Feature Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3.3 L3 Ecosystem Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Deployment 7 3.1 Using ShardingSphere‐JDBC . . . . . . . . . . . . . . . . . . ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper layer of the heterogeneous database

ShardingSphere‐JDBC defines itself as a lightweight Java framework that provides extra service at Java JDBC layer. With the client end connecting directly to the database, it provides service in the form of jar vironment, in charge of all the access to the database in the form of sidecar. It provides a mesh layer interacting with the database, we call this as Database Mesh. Database Mesh emphasizes on how to they just need to be put into the right position accordingly. They are all gov‐ erned by the mesh layer. 1.1. Introduction 2 Apache ShardingSphere document, v5.0.0-beta Shardi ngSphere-JDBC Shardin gSphere-Proxy