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商品分類的數(shù)據(jù)庫是怎么設(shè)計(jì)的以滿足查詢的高效?
因?yàn)檫要按價錢、按折扣、按評價等各種排序,如果放到一個表里很慢啊,大型電商的估計(jì)要都上百萬甚至上千萬條記錄,select sku_id from sku_clsss where class_id = 1111 order by price limit 0,20,這樣的查詢設(shè)索引也很慢很慢,難道一個class_id一個表??那估計(jì)要幾千個表了
【商品分類的數(shù)據(jù)庫是怎么設(shè)計(jì)的以滿足查詢的高效?】相關(guān)文章:
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