报错2019-04-24 12:06:46 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).2019-04-24 12:06:46 0 [Note] /usr/sbin/mysqld (mysqld 5.6.43) starting a
提交网址:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=2729 题目: Vivid has stored a piece of private information, which consisted of a serial of integers in a secret number format. All the stored numbers are in the range [-63, 63]. So every n
完整错误信息:ERROR:1118 - Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs mysql版本: mysql最新版5.8没测试过,返回5
使用ulimit -a 可以查看当前系统的所有限制值, 使用ulimit -n<可以同时打开的文件数>设置用户可以同时打开的 最大文件数 linux系统默认的只要1024 当做负载较大的服务器时,很容易遇:error: too many open files 。 并且有时候进程数太小也会导致卡死服务状态,使用ulimit -n增加 并不
/etc/rc.d/rc.local 用于用户自定义开机启动程序,可以往里写开机要执行的命令或脚本,线上的配置如下: [root@localhost ~]$ cat /etc/rc.d/rc.local /data/init/restart_game.shtouch /var/lock/subsys/localulimit -SHn 65535ulimit -u 65535/data/init/iptables.shrsync --daemon -
1.1 smallint说明id smallint(M) [UNSIGNED] [ZEROFILL]字段名 字段类型(长度) [无符号] [前导填充]unsigned:01:smallint(M)后面加上unsigned,就是无符号(smallint的范围就是0~65535)02:smallint(M)后面不加上unsigned,并且不加ZEROFILL参数,就是有符号(smalli