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:

/* SqlServerBlobSetBytes.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.sql.*;
public class SqlServerBlobSetBytes {
  public static void main(String [] args) {
    Connection con = null;
    try {
      com.microsoft.sqlserver.jdbc.SQLServerDataSource ds
        = new com.microsoft.sqlserver.jdbc.SQLServerDataSource();
      ds.setServerName("localhost");
//      ds.setPortNumber(60782);
      ds.setInstanceName("SQLEXPRESS");
      ds.setDatabaseName("AdventureWorks2019");
      ds.setUser("Herong");
      ds.setPassword("T0pSecret");
      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 = '"
        +subject+"'");

// Inserting CLOB value with PreparedStatement.setBytes()
      PreparedStatement ps = con.prepareStatement(
        "INSERT INTO Image (Subject, Body) VALUES (?,?)");
      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();
      ps.close();

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

      con.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

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 .;mssql-jdbc-9.4.1.jre16.jar SqlServerBlobSetBytes

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

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 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

 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

 Using Connection Pool with JDBC

 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

 Archived Tutorials

 References

 Full Version in PDF/EPUB