对核心数据实体进行排序的最佳方式是什么?

I have a fully working core data model, but when I return the data using a fetch request, it's in a seemingly random order. What is the best way to sort this data? Is it to use another table in the Core Data model, and 'query' the first? Or would it be to pull down the data into an array, and sort it that way?I have a fully working core data model, but whe