I can create queries on some items, but not on others. Why?

You cannot create a query on a calculated item. If you select only one cell, and that cell is for a calculated item, the Create Query icon does not appear. However, if you select more than one cell and some of the selected cells are not calculated items, the Create Query icon does appear. When you submit the data to create the query, a progress indication appears, and any calculated items are returned as unsuccessful with an error message specifying which records failed for the action.