String DATABASE_NAME = "feedback.db";
    int DATABASE_VERSION = 1;

    String FEEDBACK_TABLE_NAME = "feedback";

    String FEEDBACK_COLUMN_ID = "_id";
    String FEEDBACK_COLUMN_DIFICULTATE = "dificultate";
    String FEEDBACK_COLUMN_RATING = "rating";
    String FEEDBACK_COLUMN_SUGESTII = "sugestii";

    String CREATE_TABLE_FEEDBACK  = " CREATE TABLE " + FEEDBACK_TABLE_NAME
            + "(" +
                  FEEDBACK_COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
                  +
                  FEEDBACK_COLUMN_DIFICULTATE + " TEXT, "
                  +
                  FEEDBACK_COLUMN_RATING + " REAL, "
                  +
                  FEEDBACK_COLUMN_SUGESTII + " TEXT); ";

    String DROP_TABLE_FEEDBACK = " DROP TABLE IF EXISTS " +
                                   FEEDBACK_TABLE_NAME +";";