mysql数据库join优化

WBOY
Release: 2016-06-06 20:07:56
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表1

goodscategory_id
goodscategory_name

表2
goods_id
goods_cid
goods_name

通过join语句goods_cid和goodscategory_id 相关联

除了该方法联表还有其他的方案吗?join感觉好慢

回复内容:

表1

goodscategory_id
goodscategory_name

表2
goods_id
goods_cid
goods_name

通过join语句goods_cid和goodscategory_id 相关联

除了该方法联表还有其他的方案吗?join感觉好慢

通过索引单表取出数据,在程序中进行join操作。join子查询都是mysql的硬伤

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