一个适用于学习的Delphi商品销售查询程序，基于SQLServer数据库，为了测试方便，笔者已将数据库文件打包在Database目录中，测试前请附加。

　　本查询程序可设置自定义条件查询数据，比如可以选择某个时间段内的商品，可选择商品的相关属性进行查询，编写Delphi数据加系统能用上的技巧。-A suitable learning Delphi merchandise sales inquiry procedure, based on SQLServer database, in order to facilitate the testing, I have a database file is packaged in Database directory, test before you attach. The program can be set up custom query criteria query data, such goods can select a period of time, you can choose the product to query related attributes, data encryption system can be written on Delphi technique.