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public interface Constatnts extends BaseColumns {
   public static final String TABLE_NAME = "test";
  
   public static final String TIME = "time";
   public static final String TITLE = "title";
}
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@Override
// Õâ¸öº¯Êý»áÔÚµÚÒ»´ÎÖ´ÐÐÊý¾Ý¿â²Ù×÷µÄʱºò±»µ÷Óõ½¡£
 public void onCreate(SQLiteDatabase db) {
  // TODO Auto-generated method stub 
  db.execSQL("CREATE TABLE " + TABLE_NAME + " (" + _ID
             + " INTEGER PRIMARY KEY AUTOINCREMENT, " + TIME
             + " INTEGER," + TITLE + " TEXT NOT NULL);");  //×¢Ò⣬×îºÃÉùÃ÷×Ö¶ÎÀàÐÍ£¬ÒÔÃâ²»±ØÒªµÄÂé·³¡£
 } 
 @Override
 public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
  // TODO Auto-generated method stub
        db.execSQL("DROP TABLE IF EXITS "+ TABLE_NAME);
        onCreate(db);
 }
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   mydatabase = new Databasehelp(this);
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SQLiteDatabase db = mydatabase.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(TIME, System.currentTimeMillis());
        values.put(TITLE, string);
        db.insertOrThrow(TABLE_NAME, null, values);
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SQLiteDatabase db = mydatabase.getReadableDatabase();
        Cursor cursor = db.query(TABLE_NAME, { _ID, TIME, TITLE, }, null, null, null,
     


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