Android sqlite: how to retrieve specific data from particular column?

Question

I am developing restaurant menu application. My app has a sqlite table which has these columns:

\"id\", \"category\", \"item_name\"

Content

Answer 1

here you can pass value for filter on

   public ArrayList getPlaylist(String playlistName) {
    SQLiteDatabase db = this.getReadableDatabase();
    ArrayList obj = new ArrayList();
    Cursor cursor = db.query(TABLE_PLAYLIST, new String[] { KEY_ID,
                    KEY_TITLE, KEY_SINGER , KEY_PATH , KEY_PLAYLISTNAME , KEY_DUR }, KEY_PLAYLISTNAME+ "=?",
            new String[] { playlistName }, null, null, null, null);
    if (cursor != null)
        cursor.moveToFirst();

    PlayListModel contact = new PlayListModel
            (cursor.getString(1),
                    cursor.getString(2),cursor.getString(3),
                    cursor.getString(4),cursor.getString(5));
    obj.add(contact);
    // return contact
    return obj;
}