577 13.2.4 Proxy When using a client to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not register a storage unit, the client connection will fail? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 580 xii 13.4.1 Single table Table or view %s does not exist. How to solve the exception? . . . . 580 13.5 DistSQL . . . . . . . . . . . . is a lightweight Java framework that provides additional services at Java’s JDBC layer. With the client connecting directly to the database, it provides services in the form of jar and requires no extra

549 13.3.4 Proxy When using a client to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not register a storage unit, the client connection will fail? . . . is a lightweight Java framework that provides additional services at Java’s JDBC layer. With the client connecting directly to the database, it provides services in the form of jar and requires no extra databases, such as openGauss; • Applicable to any kind of client that is compatible with MySQL/PostgreSQL protocol, such as MySQL Command Client, MySQL Workbench, etc. 3.2. Using ShardingSphere-Proxy 8

8.2.4 Proxy When using a client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not add a resource, the client connection will fail? . is a lightweight Java framework that provides additional services at Java’s JDBC layer. With the client connecting directly to the database, it provides services in the form of jar and requires no extra databases, such as openGauss; • Applicable to any kind of client that is compatible with MySQL/PostgreSQL protocol, such as MySQL Command Client, MySQL Workbench, etc. 1.3. Deployment 6 Apache ShardingSphere

7.8.7 [Proxy] When using a client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a Schema or does not add a Resource, the client connection will fail? . . 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 and requires such as openGauss) versions are provided. It can use any kind of terminal (such as MySQL Command Client, MySQL Workbench, etc.) that is com‐ patible of MySQL or PostgreSQL protocol to operate data, which

8.2.4 Proxy When using a client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not add a resource, the client connection will fail? . is a lightweight Java framework that provides additional services at Java’s JDBC layer. With the client connecting directly to the database, it provides services in the form of jar and requires no extra databases, such as openGauss; • Applicable to any kind of client that is compatible with MySQL/PostgreSQL protocol, such as MySQL Command Client, MySQL Workbench, etc. 1.3. Deployment 8 Apache ShardingSphere

7.8.7 [Proxy] When using a client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a Schema or does not add a Resource, the client connection will fail? . . 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 and requires such as openGauss) versions are provided. It can use any kind of terminal (such as MySQL Command Client, MySQL Workbench, etc.) that is com‐ patible of MySQL or PostgreSQL protocol to operate data, which

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536 13.4.1 单表 Table or view %s does not exist. 异常如何解决？ . . . . . . . . . . . . . . . 536 13.5 DistSQL . . . . . . . . . . . MySQL 协议的数据库，以及 openGauss 等基于 PostgreSQL 协议的数据库； • 适用于任何兼容 MySQL/PostgreSQL 协议的的客户端，如：MySQL Command Client, MySQL Work‐ bench, Navicat 等。 3.2. ShardingSphere-Proxy 独立部署 7 Apache ShardingSphere document 涉及的真实数据库实例中创建 undo_log 表。SQL 的内容以 https://github.c om/apache/incubator‐seata/tree/v2.0.0/script/client/at/db 内对应的数据库为准。以下内容以 MySQL 为例。 CREATE TABLE IF NOT EXISTS `undo_log` ( `branch_id` BIGINT NOT

control • Registration center, event tracking data source management • Quickly modify job settings • View job and server dimension status • Operational job disable/enable, stop and delete life cycle • Event ElasticJob adopts a decentralized design. If the configuration of each client is inconsistent and is not controlled, the configuration of the client which is last started will be the final configuration of the be configured through JobConfigura- tion or Spring namespace. overwrite=true indicates that the client’s configuration is allowed to override the registry center, and on the contrary is not allowed.

MySQL 协议的数据库，以及 openGauss 等基于 PostgreSQL 协议的数据库； • 适用于任何兼容 MySQL/PostgreSQL 协议的的客户端，如：MySQL Command Client, MySQL Work‐ bench, Navicat 等。 3.2. ShardingSphere-Proxy 独立部署 7 Apache ShardingSphere document 如果使用 apollo 配置方式，还需要引入 apollo-client 依赖： com.ctrip.framework.apollo apollo-client ${apollo-client.version} 1. ShardingSphere-JDBC 115 Apache ShardingSphere document 修改配置 在 classpath 中增加 seata.conf 文件。 client { application.id = example ## 应用唯一主键 transaction.service.group = my_test_tx_group ## 所属事务组 }

MySQL 协议的数据库，以及 openGauss 等基于 PostgreSQL 协议的数据库； • 适用于任何兼容 MySQL/PostgreSQL 协议的的客户端，如：MySQL Command Client, MySQL Work‐ bench, Navicat 等。 3.2. ShardingSphere-Proxy 独立部署 7 Apache ShardingSphere document 1. ShardingSphere-JDBC 116 Apache ShardingSphere document 修改配置 在 classpath 中增加 seata.conf 文件。 client { application.id = example ## 应用唯一主键 transaction.service.group = my_test_tx_group ## 所属事务组 } registry center ## @param compute.serverConfig.mode.repository.props.maxRetries Max retries of client connection ## @param compute.serverConfig.mode.repository.props. operationTimeoutMilliseconds Milliseconds