Spreadsheet: 131028d1322696501-matching-dates-and-returning-another-column-instructor
Sheet: Sheet3

 |  |  |  |  |  | Instructor resource
 |  | 2012-01-19 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-19 00:00:00 | Period 9 |  |  | 1
 |  | 2012-01-20 00:00:00 | Period 1 |  |  | 0
 |  | 2012-01-20 00:00:00 | Period 2 |  |  | 0
 |  | 2012-01-20 00:00:00 | Period 3 |  |  | 0
 |  | 2012-01-20 00:00:00 | Period 4 |  |  | 0
 |  | 2012-01-20 00:00:00 | Period 5 |  |  | 0
 |  | 2012-01-20 00:00:00 | Period 6 |  |  | 2
 |  | 2012-01-20 00:00:00 | Period 7 |  |  | 2
 |  | 2012-01-20 00:00:00 | Period 8 |  |  | 2
 |  | 2012-01-20 00:00:00 | Period 9 |  |  | 2
 |  | 2012-01-21 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-21 00:00:00 | Period 9 |  |  | 1
 |  | 2012-01-22 00:00:00 | Period 1 |  |  | 0
 |  | 2012-01-22 00:00:00 | Period 2 |  |  | 0
 |  | 2012-01-22 00:00:00 | Period 3 |  |  | 0
 |  | 2012-01-22 00:00:00 | Period 4 |  |  | 0
 |  | 2012-01-22 00:00:00 | Period 5 |  |  | 0
 |  | 2012-01-22 00:00:00 | Period 6 |  |  | 2
 |  | 2012-01-22 00:00:00 | Period 7 |  |  | 2
 |  | 2012-01-22 00:00:00 | Period 8 |  |  | 2
 |  | 2012-01-22 00:00:00 | Period 9 |  |  | 2
 |  | 2012-01-23 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-23 00:00:00 | Period 9 |  |  | 1
 |  | 2012-01-24 00:00:00 | Period 1 |  |  | 0
 |  | 2012-01-24 00:00:00 | Period 2 |  |  | 0
 |  | 2012-01-24 00:00:00 | Period 3 |  |  | 0
 |  | 2012-01-24 00:00:00 | Period 4 |  |  | 0
 |  | 2012-01-24 00:00:00 | Period 5 |  |  | 0
 |  | 2012-01-24 00:00:00 | Period 6 |  |  | 2
 |  | 2012-01-24 00:00:00 | Period 7 |  |  | 2
 |  | 2012-01-24 00:00:00 | Period 8 |  |  | 2
 |  | 2012-01-24 00:00:00 | Period 9 |  |  | 2
 |  | 2012-01-25 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-25 00:00:00 | Period 9 |  |  | 1
 |  | 2012-01-26 00:00:00 | Period 1 |  |  | 0
 |  | 2012-01-26 00:00:00 | Period 2 |  |  | 0
 |  | 2012-01-26 00:00:00 | Period 3 |  |  | 0
 |  | 2012-01-26 00:00:00 | Period 4 |  |  | 0
 |  | 2012-01-26 00:00:00 | Period 5 |  |  | 0
 |  | 2012-01-26 00:00:00 | Period 6 |  |  | 2
 |  | 2012-01-26 00:00:00 | Period 7 |  |  | 2
 |  | 2012-01-26 00:00:00 | Period 8 |  |  | 2
 |  | 2012-01-26 00:00:00 | Period 9 |  |  | 2
 |  | 2012-01-27 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-27 00:00:00 | Period 9 |  |  | 1
 |  | 2012-01-28 00:00:00 | Period 1 |  |  | 0
 |  | 2012-01-28 00:00:00 | Period 2 |  |  | 0
 |  | 2012-01-28 00:00:00 | Period 3 |  |  | 0
 |  | 2012-01-28 00:00:00 | Period 4 |  |  | 0
 |  | 2012-01-28 00:00:00 | Period 5 |  |  | 0
 |  | 2012-01-28 00:00:00 | Period 6 |  |  | 2
 |  | 2012-01-28 00:00:00 | Period 7 |  |  | 2
 |  | 2012-01-28 00:00:00 | Period 8 |  |  | 2
 |  | 2012-01-28 00:00:00 | Period 9 |  |  | 2
 |  | 2012-01-29 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-29 00:00:00 | Period 9 |  |  | 1
 |  | 2012-01-30 00:00:00 | Period 1 |  |  | 0
 |  | 2012-01-30 00:00:00 | Period 2 |  |  | 0
 |  | 2012-01-30 00:00:00 | Period 3 |  |  | 0
 |  | 2012-01-30 00:00:00 | Period 4 |  |  | 0
 |  | 2012-01-30 00:00:00 | Period 5 |  |  | 0
 |  | 2012-01-30 00:00:00 | Period 6 |  |  | 2
 |  | 2012-01-30 00:00:00 | Period 7 |  |  | 2
 |  | 2012-01-30 00:00:00 | Period 8 |  |  | 2
 |  | 2012-01-30 00:00:00 | Period 9 |  |  | 2
 |  | 2012-01-31 00:00:00 | Period 1 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 2 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 3 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 4 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 5 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 6 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 7 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 8 |  |  | 1
 |  | 2012-01-31 00:00:00 | Period 9 |  |  | 1
 |  | 2012-02-01 00:00:00 | Period 1 |  |  | 0
 |  | 2012-02-01 00:00:00 | Period 2 |  |  | 0
 |  | 2012-02-01 00:00:00 | Period 3 |  |  | 0
 |  | 2012-02-01 00:00:00 | Period 4 |  |  | 0
 |  | 2012-02-01 00:00:00 | Period 5 |  |  | 0
 |  | 2012-02-01 00:00:00 | Period 6 |  |  | 2
 |  | 2012-02-01 00:00:00 | Period 7 |  |  | 2
 |  | 2012-02-01 00:00:00 | Period 8 |  |  | 2
 |  | 2012-02-01 00:00:00 | Period 9 |  |  | 2