Here is the performance stats of the solution by srinuchn for TSQL Challenge20.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Apr 21 2010 11:40PM | 1668 | 0 | 47 | 0.0580 |
| 2 | Apr 22 2010 12:09AM | 1668 | 0 | 31 | 0.0380 |
| 3 | Apr 22 2010 12:39AM | 1668 | 0 | 31 | 0.0360 |
| 4 | Apr 22 2010 1:10AM | 1668 | 0 | 47 | 0.0780 |
| 5 | Apr 22 2010 1:40AM | 1668 | 0 | 31 | 0.0710 |