Spring Boot Starter directly. The schedule jobs will startup when the Spring Boot Application is started. 6.1. Usage 32 Apache ShardingSphere ElasticJob document One-off Job When to execute OneOffJob the XML that configures the Spring namespace will be loaded, and the job will be automatically started. One-off Job When to execute OneOffJob is up to you. Developers can inject the OneOffJobBootstrap ener"> Job start The xml that configures the Spring namespace is started through Spring, and the job will be automati‐ cally loaded. 6.1. Usage 44 Apache ShardingSphere

ignore the abnormal data source during startup and start the Proxy forcibly. After the Proxy is started, you can remove the abnormal data source by DistSQL. 5. Use ShardingSphere‐Proxy. Use MySQL or another. Stock Data The data that was already in the data node before the data migration operation started. Incremental Data New data generated by operational systems during the execution of data migration -javaagent:/agent/shardingsphere-agent-${latest.release.version}.jar -jar test-project.jar • 3 Access to started service • 4 Check whether the corresponding plug‐in is effective 9.1. ShardingSphere-JDBC 151

ignore the abnormal data source during startup and start the Proxy forcibly. After the Proxy is started, you can remove the abnormal data source by DistSQL. 5. Use ShardingSphere‐Proxy. Use MySQL or another. Stock Data The data that was already in the data node before the data migration operation started. Incremental Data New data generated by operational systems during the execution of data migration -javaagent:/agent/shardingsphere-agent-${latest.release.version}.jar -jar test-project.jar • 3 Access to started service • 4 Check whether the corresponding plug‐in is effective 9.1. ShardingSphere-JDBC 135

ignore the abnormal data source during startup and start the Proxy forcibly. After the Proxy is started, you can remove the abnormal data source by DistSQL. 5. Use ShardingSphere‐Proxy. Use MySQL or another. Stock Data The data that was already in the data node before the data migration operation started. Incremental Data New data generated by operational systems during the execution of data migration l e a n Whether shard metadata is checked for structural con‐ sistency when the program is started and updated. f a l s e T r u e pr oxy‐ fron tend ‐flu sh‐t hres hold (?) i n t Set the I/O

another. Stock Data The data that was already in the data node before the data migration operation started. Incremental Data New data generated by operational systems during the execution of data migration l e a n Whether shard metadata is checked for structural con‐ sistency when the program is started and updated. f a l s e T r u e proxy‐fron tend‐ flush ‐threshold (?) i n t Set the I/O re‐ driver. • 1 T r u e check‐dup licate‐ tab le‐enabled (?) b o o l e a n When the pro‐ gram is started and updated, whether to check duplicate tables. f a l s e T r u e proxy‐fr ontend‐ exe cutor‐size

sharding/SQL. Inventory Data It refers all existing data stored in data nodes before the scaling job started. Incremental Data It refers the new data generated by application during scaling job. 3.5.7 Principle tool devel‐ opment. Unless there is no way to go, business developers generally go from getting started to giving up. Business developers must hope: reduce the burden of capital costs, do not modify restarting the system, we found that the system business is normal, but Apache ShardingSphere has started to extract the ciphertext data from the database, decrypt it and return it to the user; and for

new rule. Inventory Data It refers all existing data stored in data nodes before the scaling job started. Incremental Data It refers the new data generated by application during scaling job. 4.6. Scaling tool devel‐ opment. Unless there is no way to go, business developers generally go from getting started to giving up. Business developers must hope: reduce the burden of capital costs, do not modify restarting the system, we found that the system business is normal, but Apache ShardingSphere has started to extract the ciphertext data from the database, decrypt it and return it to the user; and for

custom SQL, stored procedures and advanced mappings. It was formerly known as IBATIS, which was started by Clinton Begin in 2002. MyBatis 3 is the latest version. It is a total makeover of IBATIS. A significant

new rule. Inventory Data It refers all existing data stored in data nodes before the scaling job started. Incremental Data It refers the new data generated by application during scaling job. 4.7.6 User tool devel‐ opment. Unless there is no way to go, business developers generally go from getting started to giving up. Business developers must hope: reduce the burden of capital costs, do not modify restarting the system, we found that the system business is normal, but Apache ShardingSphere has started to extract the ciphertext data from the database, decrypt it and return it to the user; and for

new rule. Inventory Data It refers all existing data stored in data nodes before the scaling job started. Incremental Data It refers the new data generated by application during scaling job. 4.7.6 User tool devel‐ opment. Unless there is no way to go, business developers generally go from getting started to giving up. Business developers must hope: reduce the burden of capital costs, do not modify restarting the system, we found that the system business is normal, but Apache ShardingSphere has started to extract the ciphertext data from the database, decrypt it and return it to the user; and for