cd /usr/local/bin
ln -fs /www/server/mysql/bin/mysqldumpslow mysqldumpslow
统计
select count(type='1' or null) as '分类1’,count(type='3' or null as '分类2’ from user
子查询
连接查询去重 distinct
from_unixtime
图片.png
图片.png
图片.png
cd /usr/local/bin
ln -fs /www/server/mysql/bin/mysqldumpslow mysqldumpslow
统计
select count(type='1' or null) as '分类1’,count(type='3' or null as '分类2’ from user
子查询
连接查询去重 distinct
from_unixtime
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