Inserting BLOB Values with setBytes() Method

This section describes how to insert BLOB values with the PreparedStatement.setBytes() method.

Another way to insert a binary string into a BLOB column is to create a PreparedStatement object and use the setBytes() method. See the sample program below:

 * Copyright (c) All Rights Reserved.
import java.sql.*;
public class OracleBlobSetBytes {
  public static void main(String [] args) {
    Connection con = null;
    try {
      oracle.jdbc.pool.OracleDataSource ds
        = new oracle.jdbc.pool.OracleDataSource();
      con = ds.getConnection();

// Deleting the record for re-testing
      String subject = "Test of the setBytes() method";
      Statement sta = con.createStatement();
      sta.executeUpdate("DELETE FROM Image WHERE Subject = '"

// Inserting CLOB value with PreparedStatement.setBytes()
      PreparedStatement ps = con.prepareStatement(
        "INSERT INTO Image (ID, Subject, Body) VALUES (2,?,?)");
      ps.setString(1, subject);
      byte[] bodyIn = {(byte)0xC9, (byte)0xCB, (byte)0xBB,
        (byte)0xCC, (byte)0xCE, (byte)0xB9,
        (byte)0xC8, (byte)0xCA, (byte)0xBC,
        (byte)0xCC, (byte)0xCE, (byte)0xB9,
        (byte)0xC9, (byte)0xCB, (byte)0xBB};
      ps.setBytes(2, bodyIn);
      int count = ps.executeUpdate();

// Retrieving BLOB value with getBytes()
      ResultSet res = sta.executeQuery(
        "SELECT * FROM Image WHERE Subject = '"+subject+"'");;
      System.out.println("The inserted record: ");
      System.out.println("   Subject = "+res.getString("Subject"));
      System.out.println("   Body = "
        +new String(res.getBytes("Body")));

    } catch (Exception e) {

Compilation and execution of this program is below. The output confirms that the binary string value, stored in a byte array, was correctly inserted into the CLOB column:

herong> java -cp .;ojdbc11.jar OracleBlobSetBytes

The inserted record:
   Subject = Test on INSERT statement
   Body = ╔╦╗╠╬╣╚╩╝╠╬╣╔╦╗

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 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

 Overview of BLOB (Binary Large Object)

 Create Tables with CLOB Columns

 Inserting BLOB Values with SQL INSERT Statements

Inserting BLOB Values with setBytes() Method

 Inserting BLOB Values with setBinaryStream() Method

 Closing InputStream Too Early on setBinaryStream()

 Retrieving BLOB Values with getBytes() Method

 Retrieving BLOB Values with getBinaryStream() Method

 Retrieving BLOB Values with getBlob() Method

 Inserting BLOB Values with setBlob() Method

 Copying BLOB Values to New Rows

 Archived Tutorials


 Full Version in PDF/EPUB