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列表查询+n 条附属结果,请教怎么查询比较优化
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现查询文章列表 , 要求查询 10 篇文章,每篇文章附上最新的 3 条评论.
我现在的做法是查询出 10 篇文章.然后在代码里循环查询每篇文章的最新 3 条评论.
总计 1+10 次查询....
请教有什么更好的办法,减少查询次数吗?
子查询?或者再 mysql 中做函数 /存储过程?
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