These range from the pedestrian, such as paging and sorting database records, to the more complex, such as supporting file uploads through Web forms and writing custom input validators.
这些技术覆盖较大的范围，从简单的分页和数据库记录排序，再到复杂的通过 Web 表单支持文件上传和编写定制输入验证器。
In this implementation, the sorting is pushed down to the database by modifying the SQL query used by the dataset.
在这个实现中，通过修改数据集使用的SQL查询，将排序下推到数据库。
Note that if the results from the cache are likely to be subjected to filtering or sorting, you should select a user-specified database as the storage option.
请注意，如果缓存结果满足筛选或排序，应当选择用户指定数据库为存储选项。
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