JDBC-ODBC - Looping through ResultSet

This section describes how to loop through a ResultSet object returned by the executeQuery() method.

Another test I did on SQL Server with JDBC-ODBC Bridge was to loop through a ResultSet object returned from a query statement. Each ResultSet object has an internal pointer to indicate the current row from which get*() methods can retrieve column values. The next() method on the ResultSet object can be used to move the internal pointer one row to another in the result set.

The tutorial Java program below shows you how to loop through the ResultSet to list customer names in Customer table:

/**
 * OdbcSqlServerLoopResultSet.java
 - Copyright (c) 2007, HerongYang.com, All Rights Reserved.
 */
import java.sql.*;
public class OdbcSqlServerLoopResultSet {
  public static void main(String [] args) {
    Connection con = null;
    try {
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      con = DriverManager.getConnection(
        "jdbc:odbc:SQL_SERVER;user=sa;password=HerongYang;"
        +"database=AdventureWorksLT");

// Looping through each row
      Statement sta = con.createStatement(); 
      ResultSet res = sta.executeQuery(
        "SELECT TOP 10 * FROM SalesLT.Customer");
      System.out.println("Customers:");
      while (res.next()) {
        String firstName = res.getString("FirstName");
        String lastName = res.getString("LastName");
        System.out.println("   "+firstName+" "+lastName);
      }
      res.close();
      sta.close();

      con.close();        
    } catch (Exception e) {
      System.err.println("Exception: "+e.getMessage());
    }
  }
}

Here is the output of the program:

Customers:
   Orlando Gee
   Keith Harris
   Donna Carreras
   Janet Gates
   Lucy Harrington
   Rosmarie Carroll
   Dominic Gash
   Kathleen Garza
   Katherine Harding
   Johnny Caprio

Last update: 2007.

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Installing and Running Java DB - Derby

 Derby (Java DB) JDBC Driver

 Derby (Java DB) JDBC DataSource Objects

 Java DB (Derby) - DML Statements

 Java DB (Derby) - ResultSet Objects of Queries

 Java DB (Derby) - PreparedStatement

 MySQL Installation on Windows

 MySQL JDBC Driver (MySQL Connector/J)

 MySQL - PreparedStatement

 MySQL - Reference Implementation of JdbcRowSet

 MySQL - JBDC CallableStatement

 MySQL CLOB (Character Large Object) - TEXT

 MySQL BLOB (Binary Large Object) - BLOB

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

 Oracle - Reference Implementation of JdbcRowSet

 Oracle - PreparedStatement

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Microsoft SQL Server 2005 Express Edition

 Microsoft JDBC Driver for SQL Server - sqljdbc42.jar

 Microsoft JDBC Driver - Query Statements and Result Sets

 Microsoft JDBC Driver - DatabaseMetaData Object

 Microsoft JDBC Driver - DDL Statements

 Microsoft JDBC Driver - DML Statements

 SQL Server - PreparedStatement

 SQL Server CLOB (Character Large Object) - TEXT

 SQL Server BLOB (Binary Large Object) - BLOB

 JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver

 JDBC-ODBC Bridge Driver - Flat Text Files

 JDBC-ODBC Bridge Driver - MS Access

JDBC-ODBC Bridge Driver - MS SQL Server

 JDBC-ODBC - Configuring SQL Server for TCP/IP Connection

 JDBC-ODBC - Creating DSN for SQL Server 2005

 JDBC-ODBC - Connecting to SQL Server 2005

 JDBC-ODBC - SQL Server and Driver Info

 JDBC-ODBC - Setting Current Database

JDBC-ODBC - Looping through ResultSet

 Summary of JDBC Drivers and Database Servers

 Additional Tutorial Notes to Be Added

 Outdated Tutorials

 References

 PDF Printing Version