Here is the performance stats of the solution by pareri for TSQL Challenge18.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Apr 9 2010 12:01AM | 470383 | 0 | 24414 | 25.623 |
| 2 | Apr 9 2010 12:25AM | 470383 | 0 | 25350 | 26.503 |
| 3 | Apr 9 2010 12:49AM | 470383 | 0 | 23790 | 24.898 |
| 4 | Apr 9 2010 1:13AM | 470383 | 0 | 23618 | 25.277 |
| 5 | Apr 9 2010 1:37AM | 470383 | 0 | 23712 | 25.037 |