MySQL Limit with Many to Many Relationship

Question

Given a SCHEMA for implementing tags

ITEM ItemId, ItemContent

TAG TagId, TagName

ITEM_TAG ItemId, TagId

What is the best way to limit the number

Answer 1

You could also use Distinct/Group By:

SELECT DISTINCT TagID, TagName FROM ((TAG T INNER JOIN ITEM_TAG I_T ON T.TagID = I_T.TagID) INNER JOIN ITEM I ON I_T.ItemID = I.ItemID) GROUP BY TagID, TagName