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POdatabase maximum of 10 and sort according to score, and delete the replacement of the score if it is the lowest
 

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  1. POdatabase maximum of 10 and sort according to score, and delete the replacement of the score if it is the lowest
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    <p>Hi guys im creating game and im new in sql lite. i have a code for inserting database but i dont know how to maximum it at 10 and also i dont know how to compare the new score of the player to the older scores. also how can i delete in the top 10 scored the lowest if the new score beat 1 of the top 10 score. im looking for great codes with good explanation so that i will understand the flow of codes.</p> <p>Heres my database class:</p> <pre><code> public class highscore { private static final String DATABASE_NAME = "topscoredb"; private static final String DATABASE_TABLE = "tablescore"; private static final int DATABASE_VERSION = 2; public static final String KEY_ROWID = "_id"; public static final String KEY_SCORE = "score"; public static final String KEY_NAME = "players_name"; private DbHelper ourHelper; private final Context ourContext; private SQLiteDatabase ourDatabase; private static class DbHelper extends SQLiteOpenHelper{ public DbHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" + KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_NAME + " TEXT NOT NULL, " + KEY_SCORE + " TEXT NOT NULL);" ); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub db.execSQL("DROP TABLE IF EXIST" + DATABASE_TABLE); onCreate(db); } } public highscore(Context c){ ourContext = c; } public highscore open() throws SQLException{ ourHelper = new DbHelper(ourContext); ourDatabase = ourHelper.getWritableDatabase(); return this; } public void close(){ ourHelper.close(); } public long createEntry(String name, String tscore) { // TODO Auto-generated method stub ContentValues cv = new ContentValues(); cv.put(KEY_NAME, name); cv.put(KEY_SCORE, tscore); return ourDatabase.insert(DATABASE_TABLE, null, cv); } public String getData() { String[] columns = new String[]{ KEY_ROWID, KEY_NAME, KEY_SCORE}; Cursor c = ourDatabase.query(DATABASE_TABLE, columns, null, null, null,null, null); String result = ""; int irow = c.getColumnIndex(KEY_ROWID); int iname = c.getColumnIndex(KEY_NAME); int iscore = c.getColumnIndex(KEY_SCORE); for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ result = result + c.getString(irow)+ " " +c.getString(iname)+" "+ c.getString(iscore) + "\n"; } return result; } } </code></pre> <p>should i use method?</p>
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    1. USOMG Ponies
    1. USManny Dimalanta
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    1. COA similar kind of answer is already on stackoverflow.http://stackoverflow.com/questions/2035670/limit-an-sqlite-tables-maximum-number-of-rows?rq=1
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      1. USGaurav Vashisth
    2. COsomehow similar but it was different in coding in android
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      1. USManny Dimalanta
 

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