title: SQL rawquery in android
body: <p>I know my question is very simple, I am trying to work out this rawQuery for hour, any help will be highly appreciated...</p>
  
  <pre><code>String queryString = "SELECT _id FROM " +  TABLE_SELECTED_ONE + " WHERE DifficultyLevel=? AND Attempt=?"; 
      Cursor cursor = Db.rawQuery(queryString, new String[] {beginnerOrAdvanced, "no"} );
  </code></pre>
  
  <p>but it crashes</p>
  
  <pre><code>12-08 02:18:33.091: ERROR/AndroidRuntime(546): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wissenways.practicequestion/com.wissenways.practicequestion.QuesBankSelect}: android.database.sqlite.SQLiteException: near ".": syntax error: , while compiling: SELECT _id FROMQuantQuesBank1WHEREQuantQuesBank1.DifficultyLevel='beginner' ANDQuantQuesBank1.Attempt ='no'
  </code></pre>