SQLyog连接mysql 错误号码1129:mysql error 1129: Host 'bio.chip.org' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'。解决方法:cmd命令行:mysqladmin flush-host -h 127.0.0.1 -u root -p123456解决..
mysql 安装了最新版本8.0.11后创建用户并授权后,授权的用户连接数据库提示The server requested authentication method unknown to the client查阅一些相关的资料后发现是由于新版本的mysql账号密码解锁机制不一致导致的解决办法:删除创建的用户..
mysql执行多表查询时报错:[SQL] SELECT * from (select e.account from employee eUNIONSELECT u.account from `user` uUNIONSELECT a.account from agent a)[Err] 1248 - Every derived table must have its own alias这句话的意思是每个派生出来..