Here is the performance stats of the solution by jobacr for TSQL Challenge18.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Apr 8 2010 11:49PM | 33647 | 0 | 7425 | 7.963 |
| 2 | Apr 9 2010 12:13AM | 33647 | 0 | 7535 | 8.076 |
| 3 | Apr 9 2010 12:38AM | 33647 | 0 | 7910 | 8.464 |
| 4 | Apr 9 2010 1:02AM | 33647 | 0 | 8035 | 8.673 |
| 5 | Apr 9 2010 1:26AM | 33647 | 0 | 8065 | 8.607 |