MYBATIS - ENVIRONMENT You would have to set up a proper environment for MyBatis before starting off with the actual development work. This chapter explains how to set up a working environment for MyBatis Unzip the downloaded files to extract .jar files and keep them in appropriate folders/directory. Set CLASSPATH variable for the extracted .jar files appropriately. Database Setup Create an EMPLOYEE and getters } Mapped Statements Mapper XML is an important file in MyBatis, which contains a set of statements to configure various SQL statements such as select, insert, update, and delete. These

[Encryption] How to solve that data encryption can’t work with JPA? . 308 7.7.17 17. [DistSQL] How to set custom JDBC connection properties or connection pool properties when adding a data source using DistSQL ShardingSphere is positioned as a Database Plus, and aims at building a new criterion and ecosystem above multi‐model databases. It focuses on how to reuse existing databases and their re‐ spective upper layer adaptation of database protocol, SQL dialect and database storage. It can quickly link applications and multi‐mode heterogeneous databases quickly. • Enhance: Capture database access entry to provide additional

331 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 Set up the test environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 Test phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459 8.5.1 DistSQL How to set custom JDBC connection properties or connection pool prop‐ erties when adding a data source using architecture, features can be flexibly expanded at will. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper

over time Contributor over time Apache ShardingSphere is an open‐source ecosystem consisted of a set of distributed database solu‐ tions, including 3 independent products, JDBC, Proxy & Sidecar (Planning) they are binding tables with each other. Carte‐ sian product correlation will not appear in the multi‐table correlating query, so the query efficiency will increase greatly. Take this one for example applied in distributed deployment, each work ID should be different. The default value is 0 and can be set through properties. • sequence number bit (12bit) The sequence number is used to generate different

358 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358 Set up the test environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358 Test phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498 8.5.1 DistSQL How to set custom JDBC connection properties or connection pool prop‐ erties when adding a data source using with sharding, elastic scaling, encryption features & more. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper

467 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467 Set up the test environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 468 Test phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 552 13.5.1 DistSQL How to set custom JDBC connection properties or connection pool prop‐ erties when adding a data source using with sharding, elastic scaling, encryption features & more. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper

496 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 496 Set up the test environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497 Test phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 581 13.5.1 DistSQL How to set custom JDBC connection properties or connection pool prop‐ erties when adding a data source using with sharding, elastic scaling, encryption features & more. The project is committed to providing a multi‐source heterogeneous, enhanced database platform and further building an ecosystem around the upper

[Encryption] How to solve that data encryption can’t work with JPA? . . . 350 7.8.18 [DistSQL] How to set custom JDBC connection properties or connection pool properties when adding a data source using DistSQL ‘file://component2’ REPAIR TABLE t_order OPTIMIZE TABLE t_order CHECKSUM TABLE t_order CHECK TABLE t_order SET RESOURCE GROUP group_name DROP RESOURCE GROUP group_name CREATE RESOURCE GROUP group_name TYPE = AS ON INSERT TO def_view_test DO INSTEAD INSERT INTO def_test SELECT new.* ALTER TABLE alterlock SET (toast.autovacuum_enabled = off) CREATE PUBLICATION pub1 FOR TABLE alter1.t1, ALL TABLES IN SCHEMA

[Encryption] How to solve that data encryption can’t work with JPA? . . . 362 7.8.18 [DistSQL] How to set custom JDBC connection properties or connection pool properties when adding a data source using DistSQL ‘file://component2’ REPAIR TABLE t_order OPTIMIZE TABLE t_order CHECKSUM TABLE t_order CHECK TABLE t_order SET RESOURCE GROUP group_name DROP RESOURCE GROUP group_name CREATE RESOURCE GROUP group_name TYPE = AS ON INSERT TO def_view_test DO INSTEAD INSERT INTO def_test SELECT new.* ALTER TABLE alterlock SET (toast.autovacuum_enabled = off) CREATE PUBLICATION pub1 FOR TABLE alter1.t1, ALL TABLES IN SCHEMA

？ MyBatis 是支持定制化 SQL、存储过程以及高级映射的优秀的持久层框架。MyBatis 避免了几乎所有的 JDBC 代码和手动设置参数以 及获取结果集。MyBatis 可以对配置和原生Map使用简单的 XML 或注解，将接口和 Java 的 POJOs(Plain Old Java Objects,普通的 Java对象)映射成数据库中的记录。 帮助改进文档 帮助改进文档... 不管 SIMPLE REUSE BATCH SIMPLE defaultStatementTimeout 设置超时时间，它 决定驱动等待数据 库响应的秒数。 Any positive integer Not Set (null) safeRowBoundsEnabled 允许在嵌套语句中 使用分页 （RowBounds）。 true | false False mapUnderscoreToCamelCase 调用映射对象的 setter（map 对象 时为 put）方法，这 对于有 Map.keySet() 依赖 或 null 值初始化的 时候是有用的。注 意基本类型（int、 boolean等）是不 能设置成 null 的。 true | false false logPrefix 指定 MyBatis 增加 到日志名称的前 缀。 Any String Not set logImpl 指定 MyBatis