sharding: jdbc: config: sharding: tables: myorder: key-generator-column-name: id #主键 actual-data-nodes: db$->{0..1}.myorder_$->{0..1} #分库策略 database‐s ...
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数据库 时间:
2021-02-22 12:45:00
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步骤1、修改mysql配置文件 [root@localhost ~]# vi /etc/my.cnf 在底部添加一行 skip-grant-tables 保存退出 重启mysql [root@localhost ~]# systemctl restart mysqld 步骤2、将root密码置空 [ ...
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数据库 时间:
2021-02-22 12:44:28
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状态表示: \(f[len][cnt]\):当前为len位,已经统计的$0$的个数为cnt,不计前导$0$。 注意点: 由于前导$0$标识符lead的存在,如果左边界为$0$需要作加一处理。 LL f[15][15]; int a[15]; LL dfs(int len,int cnt,bool l ...
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其他好文 时间:
2021-02-22 12:28:38
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原文链接: https://stackoverflow.com/questions/5441972/how-to-see-log-files-in-mysql To enable error log add following [mysqld_safe] log_error=/var/log/mys ...
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数据库 时间:
2021-02-20 12:19:06
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Problem Description Bruce Force has had an interesting idea how to encode strings. The following is the description of how the encoding is done:Let x1 ...
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其他好文 时间:
2021-02-19 13:18:41
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1. 题目描述 Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining ...
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移动开发 时间:
2021-02-18 13:31:34
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(1) It Has To Work. (2) No matter how hard you push and no matter what the priority, you can't increase the speed of light. (2a) (corollary). No matte ...
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Web程序 时间:
2021-02-18 13:21:47
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1. 单进程最大打开文件数限制 有时候会遇上socket/file: can‘t open so many files的问题,其实是Linux系统有文件句柄限制的,一般Linux系统限制单进程最大可以打开1024个文件,这是远远不能满足高并发需求的。 通过ulimit –a命令来查看系统的一些资源限 ...
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系统相关 时间:
2021-02-17 14:58:56
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first question: how to show a class children class : move mousrmark to class name , Ctrl + H how to show a class children class in diagram : ctrl + al ...
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其他好文 时间:
2021-02-17 14:33:03
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jq Bash, unfortunately, doesn’t ship with a command that can work with JSON natively. In this lesson, we’ll learn how to read and do basic queries on ...
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Web程序 时间:
2021-02-15 12:41:34
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