Here is the performance stats of the solution by leszek_g for TSQL Challenge23.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Jun 16 2010 11:59PM | 119635 | 15 | 6677 | 6.718 |
| 2 | Jun 17 2010 12:22AM | 119636 | 14 | 6474 | 6.574 |
| 3 | Jun 17 2010 12:45AM | 119636 | 14 | 6583 | 6.657 |
| 4 | Jun 17 2010 1:07AM | 119636 | 14 | 6661 | 6.901 |
| 5 | Jun 17 2010 1:30AM | 119636 | 14 | 6677 | 6.748 |