Merge是一个非常有用的功能,类似于Mysql里的insert into on duplicate key. Oracle在9i引入了merge命令, 通过这个merge你能够在一个SQL语句中对一个表同时执行inserts和updates操作. 当然是update还是insert是依据于你的指定的条件判断的,Merge into可以实现用B表来更新A表数据,如果A表中没有,则把B表的数据插入A表. MERGE命令从一个或多个数据源中选择行来updating或inserting到一个或多个表
Merge branch 'master' of xxx Please enter a commit message to explain why this merge is necessary,especially if it merges an updated upstream into a topic branch.Lines starting with '#' will be ignored, and an empty message aborts the commit. 只需 shi
trunk merge branch的时候报错 xxx must be ancestrally related to xxx,这个报错的意思是两者不关联,所以需要去建立关联. [回顾背景] 代码初始是先建立了branch,然后从branch copy to trunk.这个先后顺序有问题.应该是先建立trunk,再打branch,branch修改之后,再合并到trunk [具体解决] 因为目前branch的代码是最新的,那么,目标是让trunk成为最新代码
git 两个repo merge You can't merge a repository into a branch. You can merge a branch from another repository into a branch in your local repository. Assuming that you have two repositories, foo and bar both located in your current directory: $ ls foo
在git操作中,我们经常会用到fetch, merge, pull和push等命令,以下是一些我们需要注意的地方. 给大家准备了参考资料: 1. Whatʼs a Fast Forward Merge?:https://sandofsky.com/images/fast_forward.pdf 2. Understanding the Git Workflow:https://sandofsky.com/blog/git-workflow.html 3. Understanding Git: M