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解决：使用sql语句操作即可 alter table tb_order alter column contract_price set default 0 ; 阅读全文
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Log file ./ib_logfile2 is of different size 268435456 bytes than other log files 50331648 bytes! 删除这个三个文件 阅读全文
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1 卸载 rpm -qa | grep mysql rpm -e mysql-community-server-5.7.16-1.el7.x86_64rpm -e mysql-community-libs-5.7.16-1.el7.x86_64rpm -e mysql-community-clien 阅读全文
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安装参考： https://blog.csdn.net/qq1445654576/article/details/106521257 问题： mycat.log Host is blocked because of many connection errors; unblock with 'mysq 阅读全文