Android SQLite SELECT Query

Question

I have taken String value from a EditText and set it inside SELECT QUERY after WHERE condition

As

TextView tv          


        

Answer 1

 public User searchUser(String name) {
    User u = new User();
    SQLiteDatabase db = this.getWritableDatabase(); //get the database that was created in this instance
    Cursor c = db.rawQuery("select * from " + TABLE_NAME_User+" where username =?", new String[]{name});
    if (c.moveToLast()) {
        u.setUsername(c.getString(1));
        u.setEmail(c.getString(1));
        u.setImgUrl(c.getString(2));
        u.setScoreEng(c.getString(3));
        u.setScoreFr(c.getString(4));
        u.setScoreSpan(c.getString(5));
        u.setScoreGer(c.getString(6));
        u.setLevelFr(c.getString(7));
        u.setLevelEng(c.getString(8));
        u.setLevelSpan(c.getString(9));
        u.setLevelGer(c.getString(10));
        return u;

    }else {
        Log.e("error not found", "user can't be found or database empty");
        return u;
    }

}

this is my code to select one user and one only so you initiate an empty object of your class then you call your writable Database use a cursor in case there many and you need one here you have a choice Use : 1-

   if (c.moveToLast()) { } //it return the last element in that cursor 

or Use : 2-

 if(c.moveToFirst()) {  } //return the first object in the cursor 

and don't forget in case the database is empty you'll have to deal with that in my case i just return an empty object

Good Luck