Linq vs数据集。 全部存储在内存中还是分页查询？

Question

I am learning C# and trying to figure out more about collections. I hired a tutor a few days ago and he was telling me the virtues of Linq for iterating through large data results, and so I was planning on using that, but now am wondering if I understood incorrectly.

I am querying Mysql and will have up to 200,000 results which will need to be formatted and posted in groups of 500 to an HTTP server as JSON. Should I be making a single query and then using Linq to paginate the results, or should I be breaking the SELECT up into groups of 500?

My understanding is that the data flow is:

Mysql
   => MysqlDataAdapter
      => Fill DataSet
         => Use Linq to paginate

Or

Mysql
   => MysqlDataAdapter (Limit 500)
      => Fill DataSet

Just trying to figure out which way makes more sense from a performance perspective. It will be querying localhost.

Answer 1

在这里您可以找到一些比较方法，可以帮助您对datareader-vs-dataset-vs-linq进行比较