- JDBC Tutorial
- JDBC - Home
- JDBC - Introduction
- JDBC - SQL Syntax
- JDBC - Environment
- JDBC - Sample Code
- JDBC - Driver Types
- JDBC - Connections
- JDBC - Statements
- JDBC - Result Sets
- JDBC - Data Types
- JDBC - Transactions
- JDBC - Exceptions
- JDBC - Batch Processing
- JDBC - Stored Procedure
- JDBC - Streaming Data
- JDBC Examples
- JDBC - Create Database
- JDBC - Select Database
- JDBC - Drop Database
- JDBC - Create Tables
- JDBC - Drop Tables
- JDBC - Insert Records
- JDBC - Select Records
- JDBC - Update Records
- JDBC - Delete Records
- JDBC - WHERE Clause
- JDBC - Like Clause
- JDBC - Sorting Data
- JDBC Useful Resources
- JDBC - Questions and Answers
- JDBC - Quick Guide
- JDBC - Useful Resources
- JDBC - Discussion
- Useful - Java Tutorials
JDBC - Navigating a Result Set Example
Following is the example which makes use of few navigation methods described in the Result Set tutorial.
This sample code has been written based on the environment and database setup done in the previous chapters.
Copy and paste the following example in JDBCExample.java, compile and run as follows −
import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class JDBCExample { static final String DB_URL = "jdbc:mysql://localhost/TUTORIALSPOINT"; static final String USER = "guest"; static final String PASS = "guest123"; static final String QUERY = "SELECT id, first, last, age FROM Employees"; public static void main(String[] args) { // Open a connection try(Connection conn = DriverManager.getConnection(DB_URL, USER, PASS); Statement stmt = conn.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); ResultSet rs = stmt.executeQuery(QUERY); ) { // Move cursor to the last row. System.out.println("Moving cursor to the last..."); rs.last(); // Extract data from result set System.out.println("Displaying record..."); //Retrieve by column name int id = rs.getInt("id"); int age = rs.getInt("age"); String first = rs.getString("first"); String last = rs.getString("last"); // Display values System.out.print("ID: " + id); System.out.print(", Age: " + age); System.out.print(", First: " + first); System.out.println(", Last: " + last); // Move cursor to the first row. System.out.println("Moving cursor to the first row..."); rs.first(); // Extract data from result set System.out.println("Displaying record..."); // Retrieve by column name id = rs.getInt("id"); age = rs.getInt("age"); first = rs.getString("first"); last = rs.getString("last"); // Display values System.out.print("ID: " + id); System.out.print(", Age: " + age); System.out.print(", First: " + first); System.out.println(", Last: " + last); // Move cursor to the first row. System.out.println("Moving cursor to the next row..."); rs.next(); // Extract data from result set System.out.println("Displaying record..."); id = rs.getInt("id"); age = rs.getInt("age"); first = rs.getString("first"); last = rs.getString("last"); // Display values System.out.print("ID: " + id); System.out.print(", Age: " + age); System.out.print(", First: " + first); System.out.println(", Last: " + last); } catch (SQLException e) { e.printStackTrace(); } } }
Now let us compile the above example as follows −
C:\>javac JDBCExample.java C:\>
When you run JDBCExample, it produces the following result −
C:\>java JDBCExample Moving cursor to the last... Displaying record... ID: 103, Age: 30, First: Sumit, Last: Mittal Moving cursor to the first row... Displaying record... ID: 100, Age: 18, First: Zara, Last: Ali Moving cursor to the next row... Displaying record... ID: 101, Age: 25, First: Mehnaz, Last: Fatma Goodbye! C:\>
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