an example to insert data into Oracle Clob

 Step1. Insert empty_clob() into the Clob column of Oracle
Step2. Set autocommit to false
Step3. Select Clob as oracle.sql.CLOB from database
Step4. Insert String into Clob
Step5. Commit
Example:
import java.sql.*;
import java.io.*;
import oracle.jdbc.driver.OracleResultSet;
import oracle.sql.CLOB;
public class TestOracleClob implements Serializable{
public static void main(String[] args)
{

//create table test (id integer,content clob);
System.out.println("-------------------insert -----------------");
try{
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection con = DriverManager.getConnection ("oracle server",
"loginid", "loginpassword");
//Class.forName("oracle.jdbc.driver.OracleDriver");

con.setAutoCommit(false);
//Ok 1
String sql="insert into test values(1,empty_clob())";
Statement stmt=con.createStatement();
ResultSet
rs=stmt.executeQuery(sql);
System.out.println("-------------------insert -----------------");
String sqll="select content from test where id=1 for update";
ResultSet
rss=stmt.executeQuery(sqll);

if(rss.next()){
//CLOB clob = ((OracleResultSet)rss).getCLOB(1);
oracle.sql.CLOB clob= (oracle.sql.CLOB)rss.getClob("content");
clob.putString(1,"here is a string which contains more than 4000 character");
sql="update test set content=? where id=1";
PreparedStatement
pstmt=con.prepareStatement(sql);
pstmt.setClob(1,clob);
pstmt.executeUpdate();
pstmt.close();
}
con.commit();

//Ok 2
//String sql1="insert into test values(2,empty_clob())";
//ResultSet rs3=stmt.executeQuery(sql1);
String sql12="insert into test values(?,?)";
PreparedStatement
pstmt1=con.prepareStatement(sql12);
pstmt1.setInt(1,2);
pstmt