I have a query in access 2007, one field in one row has an ID number (i.e. 11476) and another field in a second row has an ID number (i.e. 11476b). Each row has two date fields, a beginning and ending date. The first row beginning date is 6/1/11 and the first row ending date is 1/31/12. The second row beginning date is 2/1/12 and the second row ending date is 5/31/12. The beginning date field is named BPB and the ending date field is named BPE. How do I combine the dates, so the result will be 6/1/11-5/31/12 using sql?