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一个定时任务中 sql 的 count 次数过大,该怎么解决
maguazhou
·
Feb 12, 2019
· 2016 views
This topic created in 2631 days ago, the information mentioned may be changed or developed.
运行不超过几分钟服务器就报警
count
SQL
定时
次数
1 replies
•
2019-02-12 15:10:50 +08:00
1
NjcyNzMzNDQ3
Feb 12, 2019
1
1.explan 优化查询范围,使用索引。
2.cont 查询使用非主力库。
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