Can't read the image from the database after insertion.

[chetan deol]

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;

import android.app.Activity;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.widget.ImageView;
import android.widget.Toast;

import com.mindtree.filters.ImageFilter;;


public class OldDB extends Activity {
	String DB_NAME ="sqldbfinalold.db";
	String TABLE_NAME ="Table1";
	public static String[] mFiles;
	public File[] imagelist,textlist,urllist;	
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);     
        ImageView img = (ImageView)findViewById(R.id.ImageView01);
        SQLiteDatabase mDB = this.openOrCreateDatabase(DB_NAME, MODE_PRIVATE, null);        
        mDB.execSQL("CREATE TABLE IF NOT EXISTS " +
                TABLE_NAME +
                " (Fileid INTEGER PRIMARY KEY, Datetime DATETIME," +
                " Usagefrequency NUMERIC, Type TEXT,Thumbnail BLOB NULL);");      
        
        // Take image files and add it to the database
        File images = new File("/sdcard/DockIt/");
  		imagelist = images.listFiles();
  		mFiles = new String[imagelist.length];
   		 for(int i= 0 ; i< imagelist.length; i++)
   		 {
   		      mFiles[i] = imagelist[i].getAbsolutePath();   		      
   		      if(imagelist[i].getName().contains("text")) 
   		      {   		      
   		      mDB.execSQL("INSERT INTO " +
                   TABLE_NAME +
                   " Values (null,'"+System.currentTimeMillis()+"','0','Text','"+null+"');");
   		      }
   		      else if(imagelist[i].getName().contains("url"))
   		      {
   		    	mDB.execSQL("INSERT INTO " +
   	                   TABLE_NAME +
   	                   " Values (null,'"+System.currentTimeMillis()+"','0','URL','"+null+"');");
   		      }
   		      else if(imagelist[i].isFile())
   		      {
   		    	byte[] b;
   		    	int records;
   		    	
   		    	ByteArrayOutputStream baos = new ByteArrayOutputStream();
   		    	Bitmap bm = BitmapFactory.decodeFile(mFiles[i]);
   		    	bm.compress(Bitmap.CompressFormat.JPEG,0, baos);
   		    	b = baos.toByteArray();
   		    	int len1 = b.length;
   		    	mDB.execSQL("INSERT INTO " +
    	                   TABLE_NAME +
    	                   " Values (null,'"+System.currentTimeMillis()+"','0','Image','"+b+"');");
   		    	Cursor mCursor = mDB.query("DockIt", null, null, null, "null", "null", "null");   		    	
   		    	records = mCursor.getCount();
   		    	mDB.execSQL("UPDATE " + TABLE_NAME +" SET Thumbnail=? WHERE Fileid=?", new Object[]{b,records});   		    	
   		    	try {
					baos.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				   Cursor c = mDB.rawQuery("SELECT Fileid, Thumbnail FROM " + TABLE_NAME , null);
			        if (c != null ) {
			          if  (c.moveToLast()) {
			          do {
			          byte[] bb;
			          bm = BitmapFactory.decodeFile(mFiles[i]);
			          
			          
			          String Fileid = c.getString(c.getColumnIndex("Fileid"));   		          
			          bb=c.getBlob(c.getColumnIndex("Thumbnail")); //here b1 size is 12
			          int bbc = bb.length;
			          bm=BitmapFactory.decodeByteArray(bb,0, bb.length);  
			          img.setImageBitmap(bm);   		        
			          }while (c.moveToNext());  		    	
			      }  		     		 
			 }
   		      }  	
   		      
   		
   		     
   		      Log.d("file"+i, mFiles[i]);   		 
   		 }
   		 
        // Close the connection
        mDB.close();
        
        
        
        
        
    }
}
   

I am not able to read the file and display it on image view.
When I try to read the file the length of the bytes is less than as while storing the bytes in db.