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1.schema层面变更 ALTER DATABASE XXXX_db CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci; 2.表层面变更 ALTER TABLE XXXXX_TBL CONVERT TO CHARACTER SET utf8mb4 C 阅读全文
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计算脏页比例 select VARIABLE_VALUE into @a from performance_schema.global_status where VARIABLE_NAME = 'Innodb_buffer_pool_pages_dirty'; select VARIABLE_VAL 阅读全文
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@echo off #关闭显示 set dd=%date:~8,2% #dd=日期 set mm=%date:~5,2% #mm=月份 set yy=%date:~0,4% #yy=年份 set Tmm=%TIME:~3,2% #Tmm=分钟 set Thh=%TIME:~0,2% #Thh=小时 阅读全文
摘要:
精品原文 https://blog.csdn.net/ranran0224/article/details/120569354 临时改配置 show variables like '%max_connection%'; show variables like '%cache_size%'; set 阅读全文