JDBC Tutorials - Herong's Tutorial Examples - Version 2.21, by Dr. Herong Yang

Create Tables with CLOB Columns

This section describes how to create tables with BLOB (LONGBLOB) columns in MySQL server.

MySQL server support BLOB with 4 data types:

  • TINYBLOB - A BLOB column with a maximum length of 255 (2**8 - 1) bytes.
  • BLOB - A BLOB column with a maximum length of 65,535 (2**16 - 1) bytes.
  • MEDIUMBLOB - A BLOB column with a maximum length of 16,777,215 (2**24 - 1 ) bytes.
  • LONGBLOB - A BLOB column with a maximum length of 4,294,967,295 or 4GB (2**32 - 1) bytes.

In order to test BLOB columns in MySQL server, I used the MySQL commnand line interface to create a test table with one BLOB column:

C:\>\local\mysql\bin\mysql -u Herong -pTopSecret

mysql> use HerongDB;
Database changed

mysql> CREATE TABLE Image (ID INTEGER PRIMARY KEY AUTO_INCREMENT,
    ->   Subject VARCHAR(256) NOT NULL,
    ->   Body LONGBLOB);
Query OK, 0 rows affected (0.01 sec)

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 Downloading and Installing JDK - Java SE

 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

 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

 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 - sqljdbc.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

 References

 PDF Printing Version

Create Tables with CLOB Columns - Updated in 2014, by Dr. Herong Yang