7 JDBC resultSetMetaData interface? it returns the information of table such as total number of columns, column name, column type etc.(就是说表的一些meta信息,比如说表的大小,列名或者数据名) 8 JDBC DatabaseMetaData interface? returns the information of the database such as username, driver name...
JDBC (Java Database Connectivity) to connect Oracle DB. Oracle JDBC driver, use `DriverManager. Establishing a Connection: By calling `DriverManager.getConnection()`, and executing queries using `Statement` or `PreparedStatement`. 32) Explain the process of connecting Spring application to O...
1.JDBC Interview Questions and Answers If you are working on Enterprise applications, I am sure that JDBC API is a part of it. JDBC API provides database connectivity for relational databases, such as MySQL and Oracle. This article has a collection of 40+ interview questions related to the ...
When we call the sleep() method, it pauses the execution of the current thread for the given time and gives priority to another thread(if available). Moreover, when the waiting time completed then again previous thread changes its state from waiting to runnable and comes in running state, a...
9.2JDBC 2.0 Core API provides the Batch Updates functionality to the java applications. 9.3Java applications can now use the ResultSet.updateXXX methods. 9.4New data types - interfaces mapping the SQL3 data types 9.5Custom mapping of user-defined types (UTDs) ...
Optional class, Collectors class, ForEach() method, +36 Parallel array sorting, Nashorn JavaScript Engine - A Java-based engine to execute JavaScript code. Parallel Array Sorting, Type and Repeating Annotations, IO Enhancements, Concurrency Enhancements, JDBC Enhancements etc.Back...
Read more: 11 Multithreading Interview Questions (With Example Answers) Can you explain the JDBC API?Sample answer: JDBC, or Java Database Connectivity, is an API providing connectivity between the Java programming language and a wide array of databases. It allows us to execute SQL statements ...
● final关键字除了修饰类之外,还有哪些用法呢? final修饰的变量,一旦赋值,不可重新赋值; final修饰的方法无法被覆盖; final修饰的实例变量,必须手动赋值,不能采用系统默认值; final修饰的实例变量,一般和static联用,用来声明常量; 注意:final不能和abstract关键字联合使用。
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JDBC 4.2 JAXP 1.6 Java DB 10.10 Networking Security Changes Advantages of Java SE 8 New Features? We can get the following benefits from Java SE 8 New Features: More Concise and Readable code More Reusable code More Testable and Maintainable Code ...