Here is the performance stats of the solution by Rashid for TSQL Challenge20.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Apr 21 2010 11:35PM | 29175 | 4 | 795 | 1.0811 |
| 2 | Apr 22 2010 12:05AM | 29179 | 0 | 748 | 0.8030 |
| 3 | Apr 22 2010 12:35AM | 29179 | 0 | 796 | 0.9051 |
| 4 | Apr 22 2010 1:05AM | 29179 | 0 | 749 | 1.1281 |
| 5 | Apr 22 2010 1:35AM | 29179 | 0 | 780 | 0.7900 |