问不倒你来找我:MySQL慢查询?满满都是套路!
Python涨薪研究所
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2021-06-30 18:30
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总结下今天的知识点吧(赞和转发是肯定要的,别想了,又不用钱):
数据库表存在一定数据量,就需要有对应的索引 发现慢查询时,检查是否走对索引,是否能用更好的索引进行优化查询速度,查看使用索引的姿势有没有问题 当索引解决不了慢查询时,一般由于业务表的数据量太大导致,利用空间换时间的思想(NOSQL、聚合、冗余...) 当读写性能均遇到瓶颈时,先考虑能否升级数据库架构即可解决问题,若不能则需要考虑分库分表 分库分表虽然能解决掉读写瓶颈,但同时会带来各种问题,需要提前调研解决方案和踩坑
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字节1/3员工反对取消大小周:每年少赚10万块!
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B站舞蹈区,又开始了!!!
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教授称已推翻爱因斯坦相对论 本人回应:为宣传真理
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