Question

I am trying to create a public string that will be used in other parts of my app. I have tried to review the use of cursors but I couldn’t find out how it would return what I wanted. I just need this to be a public method to return the value of the column email where the rowId = 1.

How far off-base am I with this and please give me some pointers? This method is inside my DatabaseHandler class

public String getUserName(String email) {

    SQLiteDatabase db = this.getReadableDatabase();
    String memail = 
            db.rawQuery("SELECT _email FROM login WHERE key_id = 1;", null);
    return memail;
}

Answer 1

Use of cursor:

String q = "SELECT * FROM login where(key_id = 1)";
Cursor c = db.rawQuery(q, null); //  db is a object of SQLiteDatabase type  

Then retrieve value column email like:

              if(c.getCount() == 0)
              {                   
                 //No entry found
              }
              else  {
                  c.moveToFirst();
                  do {
                      String mail = c.getString(c.getColumnIndex("email")); 
                        } while (c.moveToNext());               
            c.close();

---

Use it in your method and return the value of String mail 🙂