Problem on inserting text from file to a clob column

Question

Hi! I'm having problem in inserting text read from a text file to a clob column in my table.
Here's my code
public void addSyllabusOutline(int syllid)
          CLOB objclob1 = null;
          CLOB objclob2 = null;
          String query = "SELECT outline, projoutline FROM Syllabus WHERE syllabusid = '"+ syllid +"' FOR UPDATE";
          try
               System.out.print("Getting syllabus outline and projoutline clob locator...");
               DBConnection dbconnbean = new DBConnection();
               dbconnbean.openConnection();
               ResultSet rst = dbconnbean.executeQuery(query);
               if(rst.next())
                    objclob1 = (oracle.sql.CLOB)rst.getClob("outline");
                    objclob2 = (oracle.sql.CLOB)rst.getClob("projoutline");
                    Writer clobwriter1 = ((oracle.sql.CLOB)objclob1).getCharacterOutputStream();
                    String filename1 = "c:\\o1u2t3l4i5n6e7.txt";
                    File outlinefile1 = new File(filename1);
                    FileReader outlineFileReader1 = new FileReader(outlinefile1);
                    char[] cbuffer1 = new char[10 * 1024];
                    int nread1 = 0;
                    while((nread1 = outlineFileReader1.read(cbuffer1)) != -1)
                         clobwriter1.write(cbuffer1, 0, nread1);
                    //clobwriter1.flush();
                    clobwriter1.close();
                    Writer clobwriter2 = ((oracle.sql.CLOB)objclob2).getCharacterOutputStream();
                    String filename2 = "c:\\p1r2o3j4o5u6t7l8i9n0e.txt";
                    File outlinefile2 = new File(filename2);
                    FileReader outlineFileReader2 = new FileReader(outlinefile2);
                    char[] cbuffer2 = new char[10 * 1024];
                    int nread2 = 0;
                    while((nread2 = outlineFileReader2.read(cbuffer2)) != -1)
                         clobwriter2.write(cbuffer2, 0, nread2);
                    //clobwriter2.flush();
                    clobwriter2.close();
               System.out.println("done");
               dbconnbean.closeConnection();
          catch(Exception e)
               System.out.println("Error: " + e);
My error is java.sql.SQLException fetch out of sequence. I don't have an Idea on what seems to be the problem. Please help.. Thank you very much. ^_^

Answer 1

Hi,
Print the whole stack trace. It will tell you the line which causes the error. How you use clob and blob in oracle is also version dependent. Try to google for
oracle "your version" java clob example.
/Kaj