Here is the performance stats of the solution by pp.pragnesh for TSQL Challenge18.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Apr 9 2010 12:01AM | 287924 | 6 | 2527 | 3.134 |
| 2 | Apr 9 2010 12:26AM | 287924 | 6 | 2715 | 3.220 |
| 3 | Apr 9 2010 12:50AM | 287924 | 6 | 2496 | 3.146 |
| 4 | Apr 9 2010 1:14AM | 287924 | 6 | 2309 | 2.812 |
| 5 | Apr 9 2010 1:38AM | 287924 | 6 | 2433 | 2.999 |