public class Student { private int id; private String name; private String branch; private int percentage; private int phone; private String email; //Setters and getters } Mapped private String name; private String branch; private int percentage; private int phone; private String email; public Student(String name, String branch, int percentage, int phone, String email) Here, parameteType − could take a value as string, int, float, double, or any class object based on requirement. In this example, we would pass Student

. . . . . . . . . . . . . . 578 13.3.1 Sharding How to solve Cloud not resolve placeholder ⋯in string value ⋯ error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 578 13.3.2 A Row Value Expressions consists of two parts as a string, the Type Name part of the corresponding SPI implementation at the beginning of the string and the expression part. Take t_order_${1 the string is the Type Name used by the corresponding SPI implementation for this Row Value Expres‐ sions, which is identified by the <> symbol. And the t_order_${1..3} string is the expression

. . . . . . . . . . . . . . 549 13.4.1 Sharding How to solve Cloud not resolve placeholder ⋯in string value ⋯ error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549 13.4.2 A Row Value Expressions consists of two parts as a string, the Type Name part of the corresponding SPI implementation at the beginning of the string and the expression part. Take t_order_${1 the string is the Type Name used by the corresponding SPI implementation for this Row Value Expres‐ sions, which is identified by the <> symbol. And the t_order_${1..3} string is the expression

. . . . . . . . . . . . . . . . . . . . . . . . 534 13.3.1 分片 Cloud not resolve placeholder ⋯in string value ⋯异常的解决方法? . . . . 534 13.3.2 分片 inline 表达式返回结果为何出现浮点数？ . . . . . . . . . . . . . . . . . forName("org.apache.shardingsphere.driver.ShardingSphereDriver"); String jdbcUrl = "jdbc:shardingsphere:classpath:config.yaml"; String sql = "SELECT i.* FROM t_order o JOIN t_order_item i ON o.order_id=i ShardingSphere-JDBC 79 Apache ShardingSphere document • 使用数据库连接池 String driverClassName = "org.apache.shardingsphere.driver.ShardingSphereDriver"; String jdbcUrl = "jdbc:shardingsphere:classpath:config.yaml";

file:// 的 URL 形式的文件路径来配置。MyBatis 包含一个名叫 Resources 的 工具类，它包含一些实用方法，可使从 classpath 或其他位置加载资源文件更加容易。 String resource = "org/mybatis/example/mybatis-config.xml"; InputStream inputStream = Resources.getRes 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 所用 日志的具体实现， 未指定时将自动查 SLF4J | LOG4J | LOG4J2 | JDK_LOGGING | Not set _long long _short short _int int _integer int _double double _float float _boolean boolean string String byte Byte long Long short Short int Integer Save web pages as PDF manually or automatically

. . . . . . . . . . . . . . 359 7.8.8 [Sharding] How to solve Cloud not resolve placeholder ⋯in string value ⋯ error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 7.8.9 ‘finley’@‘localhost’; CREATE ROLE ‘app_read’ DROP ROLE ‘app_read’ SHOW CREATE USER finley SET PASSWORD = ‘auth_string’ SET ROLE DEFAULT; Authorization SQL GRANT ALL ON db1.* TO ‘jeffrey’@‘localhost’ GRANT SELECT Built-In Key Generator UUID Use UUID.randomUUID() to generate the distributed key. NanoID Generate a string of length 21 distributed key. SNOWFLAKE Users can configure the strategy of each table in sharding

. . . . . . . . . . . . 305 7.7.8 8. [Sharding] How to solve Cloud not resolve placeholder ⋯in string value ⋯ error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 7.7.9 database connection pools according to business scenarios. // Configure actual data sources Map<String, DataSource> dataSourceMap = new HashMap<>(); // Configure the first data source HikariDataSource createDataSource(dataSourceMap, Collections.singleton(shardingRuleConfig), new Properties()); String sql = "SELECT i.* FROM t_order o JOIN t_order_item i ON o.order_id=i.order_ id WHERE o.user_id=

. . . . . . . . . . . . 496 xiii 8.3.1 Sharding How to solve Cloud not resolve placeholder ⋯in string value ⋯ error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 496 8.3.2 databases managed by Apache ShardingSphere. • Migration of integer or string unique key tables. • Migration of integer or string primary key tables. Procedures not supported • Migration without primary forName("org.apache.shardingsphere.driver.ShardingSphereDriver"); String jdbcUrl = "jdbc:shardingsphere:classpath:config.yaml"; String sql = "SELECT i.* FROM t_order o JOIN t_order_item i ON o.order_id=i

. . . . . . . . . . . . . . . . . . . . . . . . 487 13.4.1 分片 Cloud not resolve placeholder ⋯in string value ⋯异常的解决方法? . . . . 487 13.4.2 分片 inline 表达式返回结果为何出现浮点数？ . . . . . . . . . . . . . . . . . forName("org.apache.shardingsphere.driver.ShardingSphereDriver"); String jdbcUrl = "jdbc:shardingsphere:classpath:config.yaml"; String sql = "SELECT i.* FROM t_order o JOIN t_order_item i ON o.order_id=i executeQuery()) { while(rs.next()) { // ... } } } • 使用数据库连接池 String driverClassName = "org.apache.shardingsphere.driver.ShardingSphereDriver"; String jdbcUrl = "jdbc:shardingsphere:classpath:config.yaml";

. . . . . . . . . . . . . . 347 7.8.8 [Sharding] How to solve Cloud not resolve placeholder ⋯in string value ⋯ error? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348 7.8.9 ‘finley’@‘localhost’; CREATE ROLE ‘app_read’ DROP ROLE ‘app_read’ SHOW CREATE USER finley SET PASSWORD = ‘auth_string’ SET ROLE DEFAULT; Authorization SQL GRANT ALL ON db1.* TO ‘jeffrey’@‘localhost’ GRANT SELECT bound‐ ary:0.0001 ‐ 1.0 1（const type） otel.reso urce.attributes open‐ telemetry properties String key value pair (, split) servi ce.name=shardi ngsphere‐ agent otel. traces.exporter Tracing