只能在表上加约束
上面的命令报错了,去掉 -c # mysqlcheck -uroot -p –auto-repair -o newmandela Enter password: newmandela.account note : Table does not support optimize, doing recreate + analyze instead status : OK newmandela.alarm note : Table does not support optimize, doing recreate + analyze instead statu...
(says it not a BASE TABLE and no user registered???) Greg Hauptmann August 19, 2008 04:24PM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and ...
方式一:基于docker安装 #下拉镜像 docker pull mysql:8.0.21 #启动镜像 docker run -p 3307:3306 --name mysql -e MYSQL_ROOT_PASSWORD=hadoop -d mysql:8.0.21 #启动成功后,进入容器内部拷贝配置文件,到宿主主机 docker cp mysql:/etc/mysql /home/summer/mysql8 拷贝容器的 /etc/mysql目录到 主机目录/ho...
discord.py wait_for not working in a method I have 2 separate files in this case, where 1 is for the main file, and another is a file containing functions(not in a Cog). I want to have a user respond to the message that a bot outputs and then t... ...
database, table, and trigger names. This means such names are not case-sensitive in Windows, but are case-sensitive in most varieties of Unix. One notable exception is macOS, which is Unix-based but uses a default file system type (HFS+) that is not case-sensitive. However, macOS also...
is [not] null用于限定 字段值是否为空值NULL (注:'=' 只能用来判断普通内容 ;'<=>'安全等于 :既可以判断普通内容也可以判断NULL值)。 分组筛选group by与 分组后条件筛选having 查询结果排序呈现 **order by exp1 ASC/DESC [,exp2 ASC/DESC...] ** ...
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MySQL数据连接测试连接时,报错「Establishing SSL connection without server's identity verification is not recommended」 MySQL数据集,模板预览时数据集出错,日志报错「wait millis 10014, active 0, maxActive 50, creating 1, createElapseMillis 20028」
支持执行ANALYZE TABLE语句手动查询数据字典表存储有关列值的直方图统计信息。 支持通过视图自动查看表统计信息和列统计信息。 查询改写优化 支持外联接优化。 支持外联接简化。 支持块嵌套循环和批量 Key 访问联接。 支持条件过滤。 支持常量叠算优化。 支持IS NULL优化 (索引不存储NULL值)。