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展示报告的最佳做法
原标题:Best practices for displaying reports

目前,我有客户服务申请。 客户需要能够生成报告。 这些报告有数百万份记录。 向客户获取数据的最佳途径是什么? 立即发放所有100万份记录并不十分有效。 我要说的是,我只想通过一切结果在一段时期和一页展示20个。 用户每当下页点击时,我是否拥有服务器? 或者,我是否拥有服务器,然后将其一部分寄给客户?

问题回答

使用治疗器——就这些目的而言是完美的。

注——一份有100万份的报告设计不好。 诺巴迪可以处理。 但这是一个分析问题。

http://www.commandprompt.com/ppbook/x15040

I used Limit in sql query to set a range of records fetched. but the query has to originate from client and the query must pass the range.

如果你使用Dotnet+npgsql连接器,这取决于描述。

  • I would generate a Pagenumber in a combobox on form
  • Then multiply the pagenumber with Rows*(pagenum-1) (20*1 for page2) to get starting rownum
  • Pass it in form of sql to database
  • Retrieve rows and display in datagridview

虽然这或许只是增加一点,但通过100万个记录页搜索并非智慧。 i 希望有一些过滤器将搜索减少到几页。 由于研究表明,第10页之后的观点呈指数下降趋势。





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