PreparedStatement in Batch Mode

This section describes how to use PreparedStatement objects in batch mode.

If you want to execute a PreparedStatement object multiple times in a single transaction, you can use the batch feature of the PreparedStatement object. Each time the addBatch() method is called, a copy of the embedded SQL statement will be created, but not executed until the execution method call. Here is sample sequence of method calls to execute a PreparedStatement object in batch mode:

ps.setXXX(...); // Set parameters for the first copy
...
ps.addBatch();  // Create the first copy of the SQL statement
ps.setXXX(...); // Set parameters for the second copy
...
ps.addBatch();  // Create the second copy of the SQL statement
ps.setXXX(...); // Set parameters for the third copy
...
ps.addBatch();  // Create the third copy of the SQL statement

ps.executeBatch(); // Execute all copies together as a batch

Here is a sample program that creates a PrepareStatement object and executes it in batch mode to run an INSERT statement 4 times:

/* MySqlPreparedStatementBatch.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.util.*;
import java.sql.*;
import javax.sql.*;
import javax.naming.*;
public class MySqlPreparedStatementBatch {
  public static void main(String [] args) {
    Connection con = null;
    try {
      com.mysql.cj.jdbc.MysqlDataSource ds
        = new com.mysql.cj.jdbc.MysqlDataSource();
      // com.mysql.jdbc.jdbc2.optional.MysqlDataSource ds
      //   = new com.mysql.jdbc.jdbc2.optional.MysqlDataSource();

      ds.setServerName("localhost");
      ds.setPortNumber(3306);
      ds.setDatabaseName("HerongDB");
      ds.setUser("Herong");
      ds.setPassword("TopSecret");
      con = ds.getConnection();

// PreparedStatement
      PreparedStatement ps = con.prepareStatement(
  "INSERT INTO Profile (FirstName, LastName) VALUES (?, ?)");

// Provide values to parameters for copy 1
      ps.setString(1,"John");
      ps.setString(2,"First");

// Create copy 1
      ps.addBatch();

// Provide values to parameters for copy 2
      ps.setString(1,"Bill");
      ps.setString(2,"Second");

// Create copy 2
      ps.addBatch();

// Provide values to parameters for copy 3
      ps.setString(1,"Mark");
      ps.setString(2,"Third");

// Create copy 3
      ps.addBatch();

// Provide values to parameters for copy 4
      ps.setString(1,"Jack");
      ps.setString(2,"Last");

// Create copy 4
      ps.addBatch();

// Execute all 4 copies
      int[] counts = ps.executeBatch();

      int count = 0;
      for (int i=0; i<counts.length; i++) {
        count += counts[i];
      }
      System.out.println("Total effected rows: "+count);

// Close the PreparedStatement object
      ps.close();

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

Here is the output:

Total effected rows: 4

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

 PreparedStatement Overview

 PreparedStatement with Parameters

PreparedStatement in Batch Mode

 Performance of Inserting Rows with a PreparedStatement

 InnoDB (MySQL 5.5 Default Engine) Slower on INSERT

 Performance of Inserting Rows with a Regular Statement

 Performance of Inserting Rows with a ResultSet

 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 Express Edition

 Microsoft JDBC Driver for SQL Server

 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

 Using Connection Pool with JDBC

 Archived Tutorials

 References

 Full Version in PDF/EPUB