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AWR分析报告问题求助:SQL如何可以从哪几个方面优化?
2022-08-02 02:07:00 【马兰花开】
其他答案1:

其他答案2:
希望对你有帮助
https://www.modb.pro/db/13170其他答案3:
已提供的AWR报告,时间跨度太大了,没有太大参考价值,建议取卡顿时间段内的awr和ash报告信息
其他答案4:
基本上看Load Profile的几个关键点。
Redo size 看有没有大量写入。一般归档满,磁盘不足看这个。
Logical read 看读数据量大不大。一般硬件条件达标的环境,这个越大说明系统越繁忙。(SQL写的不好也会让数据库很忙)
Block changes 看写入的数据量大不大。
Physical read 看SQL写的好不好,或者硬件是不是不给力(内存过小)。
Executes (SQL):每秒执行的SQL数量。看业务是不是复杂
Transactions:每秒执行的事务数量。看系统忙不忙
其实一起都是SQL,把这里的都控制好了,什么问题都没有了

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