如何在访问报告详细信息部分中选择前N个，或在sql子查询中选择前N个

I have a report that is based on a query. In the detail section of the report I want to limit the number of detail lines to top N. (like a select TOP N type query). In this sample I want the top 2 rows. Query I have so far is I have a report that is based on a query. In th