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如果数据库中存有日期类型或日期时间类型的字段，那我们就可以实现按照日期范围进行数据过滤。
如下图所示，用户可以通过参数面板指定查询日期，然后预览对应的数据。
接下来以内嵌数据集为例为您介绍实现日期范围过滤的操作步骤。
打开报表设计器，按照下图中所示添加两个报表参数。
选择WynDemoData添加内嵌数据集。将报表参数传入数据集内部的查询参数。并将查询参数名称修改为开始和截止。如下图所示。
输入 SQL 查询语句： select * from 销售明细 where DateDiff (d, @开始, 订购日期) >= 0 and DateDiff (d, @截止, 订购日期) <= 0 ，并验证确定。
具体如下图所示。
比如我们想要查询2017年4月最后10天的订单情况。那么选定日期后，单击“预览报表”即可查询出对应日期范围的数据。预览确认是我们需要的效果后，保存报表即可。
