updateXXX() - Updating Column Values for Row Update or Insert

This section describes updateXXX() methods used to update column values for the current row for database update or the insert row for inserting a new row.

When a ResultSet object is created with update capability, you can call updateXXX() methods to update column values to prepare for calling updateRow() or insertRow() method store the updated row or a new row to the target table. All updateXXX() methods support two types of parameters to specify a column:

JDBC supports many updateXXX() methods, one for each Java data type, so that you can set column values directly with the desired Java data types without any conversion. Here is a list of updateXXX() methods:

Here is sample program that uses different updateXXX() methods to set column values with different data types:

/* DerbyUpdateMethods.java
 - Copyright (c) 2015, HerongYang.com, All Rights Reserved.
 */
import java.sql.*;
public class DerbyUpdateMethods {
  public static void main(String [] args) {
    Connection con = null;
    try {
      con = DriverManager.getConnection(
        "jdbc:derby://localhost/TestDB");

// Create a Statement for scrollable ResultSet
      Statement sta = con.createStatement(
        ResultSet.TYPE_FORWARD_ONLY,
        ResultSet.CONCUR_UPDATABLE);

// Catch the ResultSet object
      ResultSet res = sta.executeQuery(
        "SELECT * FROM Profile WHERE 1=2");

// Check ResultSet's updatability
      if (res.getConcurrency() == ResultSet.CONCUR_READ_ONLY) {
        System.out.println("ResultSet non-updatable.");
      } else {
        System.out.println("ResultSet updatable.");
      }

// Move the cursor to the insert row
      res.moveToInsertRow();

// Prepare column values in different data types
      String firstName = "Alex";
      String lastName = "King";
      double points = 654.321; 
      Date birthDate = Date.valueOf("1966-06-06");
      Timestamp now = new Timestamp(System.currentTimeMillis());

// Set the new first name and last name
      res.updateString("FirstName", firstName);
      res.updateString("LastName", lastName);
      res.updateDouble("Point", points);
      res.updateDate("BirthDate", birthDate);
      res.updateTimestamp("ModTime", now);

// Store the insert into database
      res.insertRow();
      
// Move the cursor back to the current row
      res.moveToCurrentRow();

      System.out.println("Row inserted ok.");

// Close ResultSet and Statement
      res.close();
      sta.close();

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

Note that the Date class used in this program is from the java.sql.* package, not from the java.util.* package. There is no problem with the execution:

ResultSet updatable.
Row inserted ok.

Last update: 2015.

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

 What Is ResultSet?

 ResultSet Cursor and Scrollability

 ResultSet Cursor Initial Position: Before First Row

 Retrieving Column Values with getXXX() Methods

 ResultSet Default Type: Forward-only

 Scrollable ResultSet and Moving Cursor Backward

 ResultSet Objects with Update Capability

 insertRow() - Inserting New Rows through ResultSet Objects

updateXXX() - Updating Column Values for Row Update or Insert

 deleteRow() - Deleting Rows through ResultSet Objects

 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

 Summary of JDBC Drivers and Database Servers

 Additional Tutorial Notes to Be Added

 Outdated Tutorials

 References

 PDF Printing Version