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How do you write an infinite classification of a table like this?

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How to write a table of this kind if you do infinite classification
Specific News Page Table

CATE_ID------Current News parent category ID
SUBCATE_ID-----Current News Category ID




News classification Table

CATE_ID------------Category ID (including all categories and subcategories)


PID-------------parent Category ID of the current classification



I want to make him into an infinite category, how should I cycle? to list all categories and sort them, and to list news in related categories

------Solution--------------------
Recursive
or no recursive http://topic.csdn.net/u/20110728/15/eadffb68-5eb6-40d8-9ec1-2bc439f45322.html
------Solution--------------------
You are currently a pure parent-child value classification, no recursion is not possible

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