mysql 怎么从多种维度删选商品
比如,我要价格在20-30 50-60 70-80 价格区间的商品,关系为or
同时标题要包含裙子,上衣,外套关系为or,
还要排除标题包含童装,书籍,关系为and,这样的语句应该怎么写呀,Php这三种都变成一个变量来表达的话应该怎么设计Php?我用的是thinkphp 这个能不能用thinkphp 封装好的增删改查来操作呢?
回复内容:
比如,我要价格在20-30 50-60 70-80 价格区间的商品,关系为or
同时标题要包含裙子,上衣,外套关系为or,
还要排除标题包含童装,书籍,关系为and,这样的语句应该怎么写呀,Php这三种都变成一个变量来表达的话应该怎么设计Php?我用的是thinkphp 这个能不能用thinkphp 封装好的增删改查来操作呢?
where ((price > 20 and price < 30) or (price > 50 and price < 60) or (price > 70 and price < 80)) and ((title like .... ) or ...... )
你可以这么写,但是如果你的数据量稍微有点量就非常容易导致很严重的性能问题
你应该使用elasticsearch, sphinx, xunsearch, solr等搜索引擎来解决这个问题

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