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Crystal reports 根据最后两条记录进行筛选_Crystal Reports - Fatal编程技术网

Crystal reports 根据最后两条记录进行筛选

Crystal reports 根据最后两条记录进行筛选,crystal-reports,Crystal Reports,我的报告需要确定客户的最后两个记录中何时发生了事件。我创建了一个运行总数,并用它来查看每个客户的最后记录。如何仅显示最后两条记录都有此事件的记录 因此,如果我有: Customer 1 Record Meets Criteria Customer 1 Record Doesn't Meet Criteria Customer 2 Record Meets Criteria Customer 2 Record Meets Criteria Customer 3 Record D

我的报告需要确定客户的最后两个记录中何时发生了事件。我创建了一个运行总数,并用它来查看每个客户的最后记录。如何仅显示最后两条记录都有此事件的记录

因此,如果我有:

Customer 1 Record Meets Criteria  
Customer 1 Record Doesn't Meet Criteria  

Customer 2 Record Meets Criteria  
Customer 2 Record Meets Criteria  

Customer 3 Record Doesn't Meet Criteria  
Customer 3 Record Doesn't Meet Criteria  
我只想看到:

Customer 2 Record Meets Criteria  
Customer 2 Record Meets Criteria

我尝试使用此自定义SQL命令,但它只提取了一条记录:

SELECT top(2) DateAdded
FROM customer_history.date_of_service
ORDER BY DateAdded DESC

您可能可以在Crystal中实现这一点,但您最好在Database Expert中使用SQL命令来设置它。我认为部分问题可能是表本身和使用Crystal reports的软件程序。它有一个问题,即它只能处理来自SQL的最简单的命令。您可能可以在Crystal中实现这一点,但您最好在Database Expert中使用SQL命令进行设置。我认为部分问题可能是表本身和使用Crystal reports的软件程序。它有一个问题,即它只能处理sql中最简单的命令