Here is the performance stats of the solution by brejk for TSQL Challenge20.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | Apr 21 2010 11:33PM | 23501 | 0 | 624 | 0.6320 |
| 2 | Apr 22 2010 12:03AM | 23501 | 0 | 608 | 0.8010 |
| 3 | Apr 22 2010 12:33AM | 23501 | 0 | 609 | 0.6970 |
| 4 | Apr 22 2010 1:03AM | 23501 | 0 | 608 | 0.9931 |
| 5 | Apr 22 2010 1:33AM | 23501 | 0 | 640 | 0.6360 |