11 2021 档案
SQL查询时根据类型条件转换
摘要:SELECT OrderID, Quantity, CASE WHEN Quantity > 30 THEN 'The quantity is greater than 30' WHEN Quantity = 30 THEN 'The quantity is 30' ELSE 'The quanti 阅读全文
posted @ 2021-11-30 16:31 heidsoft 阅读(130) 评论(0) 推荐(0) 编辑
calico+macvlan
摘要:1.calico 网络 2.macvlan 网络 3.calico+macvlan 双网络 阅读全文
posted @ 2021-11-23 18:49 heidsoft 阅读(193) 评论(0) 推荐(0) 编辑
专有网络VPC下ECS实例之间如何搭建IPIP隧道
摘要:https://help.aliyun.com/document_detail/87620.html http://www.asznl.com/post/81 https://access.redhat.com/documentation/zh-cn/red_hat_enterprise_linux 阅读全文
posted @ 2021-11-23 18:10 heidsoft 阅读(44) 评论(0) 推荐(0) 编辑
MYSQL中的COLLATE
摘要:参考:https://cloud.tencent.com/developer/article/1366841 在mysql中执行show create table 指令,可以看到一张表的建表语句,example如下: CREATE TABLE table1 ( id bigint(20) unsig 阅读全文
posted @ 2021-11-23 15:13 heidsoft 阅读(400) 评论(0) 推荐(0) 编辑
华为欧拉openEuler 更新源没有main路径
摘要:https://repo.openeuler.org/openEuler-21.09/EPOL/ [EPOL] name=EPOL baseurl=http://repo.openeuler.org/openEuler-21.09/EPOL/main/$basearch/ enabled=1 gpg 阅读全文
posted @ 2021-11-21 22:44 heidsoft 阅读(307) 评论(0) 推荐(0) 编辑
VMware Fusion 自定义虚拟网络
摘要:➜ vmnet3 pwd /Library/Preferences/VMware Fusion/vmnet3 ➜ vmnet3 cat nat.conf # VMware NAT configuration file # Manual editing of this file is not reco 阅读全文
posted @ 2021-11-21 22:24 heidsoft 阅读(315) 评论(0) 推荐(0) 编辑
Difference between "genmask" and "netmask"?
摘要:https://segmentfault.com/a/1190000019363010 https://serverfault.com/questions/696988/difference-between-genmask-and-netmask https://zhuanlan.zhihu.com 阅读全文
posted @ 2021-11-19 18:43 heidsoft 阅读(84) 评论(0) 推荐(0) 编辑




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