1. 安装curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash2. nvm命令查看远程node版本nvm ls-remote列出所有安装的版本nvm ls安装最新稳定版 nodenvm install stable安装指定版本nvm in...

6. Git如何在不提交当前分支的情况下切换到其它分支进行操作储存当前分支的修改git stash查看储存的修改信心git stash list恢复stash的修改方法一：git stash apply//但是恢复后，stash内容并不删除，这时候再执行git stash list 命令，id 为xxx的储藏项目还会在列表中，你需要用git stash drop ...

1、利用select into outfile实现数据的备份与还原select * from students where Age > 30 into outfile ‘/tmp/stud.txt' ;备份select * into outfile 'tmp/t1.txt'fields terminated by ',' optionally enclosed by '*...

连接cassandracqlsh 192.168.6.202cqlsh -u 'cassandra' -p 'cassandra'查看表空间describe keyspaces;describe keyspace {keyspace};查看已有表describe tables;查看表结构describe table table_name;Cassandra 提供了三...